diff --git a/ChangeLog b/ChangeLog
index bc4783fb..9d19723b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-11-28 Bart Hakvoort <hakvoort@cvs.gnome.org>
+	* decided to use the Supported enum a bit more efficient in checks
+	  ( doh, big deal :P )
+
 2005-11-27 Bart Hakvoort <hakvoort@cvs.gnome.org>
 	* include/Win_GParted.h,
 	  src/Win_GParted.cc: Added a menu 'Edit' which contains 'Undo' and
diff --git a/src/Dialog_Filesystems.cc b/src/Dialog_Filesystems.cc
index 8d6994d6..9b3f9e2c 100644
--- a/src/Dialog_Filesystems.cc
+++ b/src/Dialog_Filesystems.cc
@@ -57,19 +57,19 @@ void Dialog_Filesystems::Show_Filesystem( const FS & fs )
 	treerow[ treeview_filesystems_columns .filesystem ] = fs .filesystem ;
 	
 	treerow[ treeview_filesystems_columns .create ] = 
-		render_icon( fs .create != GParted::FS::NONE ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR); 
+		render_icon( fs .create ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR); 
 	
 	treerow[ treeview_filesystems_columns .grow ] = 
-		render_icon( fs .grow != GParted::FS::NONE ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
+		render_icon( fs .grow ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
 	
 	treerow[ treeview_filesystems_columns .shrink ] = 
-		render_icon( fs .shrink != GParted::FS::NONE ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
+		render_icon( fs .shrink ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
 	
 	treerow[ treeview_filesystems_columns .move ] = 
-		render_icon( fs .move != GParted::FS::NONE ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
+		render_icon( fs .move ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
 	
 	treerow[ treeview_filesystems_columns .copy ] = 
-		render_icon( fs .copy != GParted::FS::NONE ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
+		render_icon( fs .copy ? Gtk::Stock::APPLY : Gtk::Stock::CANCEL, Gtk::ICON_SIZE_LARGE_TOOLBAR ); 
 }
 
 Dialog_Filesystems::~Dialog_Filesystems( ) 
diff --git a/src/GParted_Core.cc b/src/GParted_Core.cc
index 7778a118..64962043 100644
--- a/src/GParted_Core.cc
+++ b/src/GParted_Core.cc
@@ -438,11 +438,11 @@ bool GParted_Core::Resize( const Device & device, const Partition & partition_ol
 				p_filesystem ->cylinder_size = device .cylsize ;
 				
 				if ( p_filesystem ->Resize( partition_new ) )
-					Resize_Container_Partition( device .path, partition_old, partition_new, get_fs( partition_new .filesystem ) .move != GParted::FS::NONE ) ;
+					Resize_Container_Partition( device .path, partition_old, partition_new, ! get_fs( partition_new .filesystem ) .move ) ;
 			}
 			//growing/moving
 			else
-				Resize_Container_Partition( device .path, partition_old, partition_new, get_fs( partition_new .filesystem ) .move != GParted::FS::NONE ) ;
+				Resize_Container_Partition( device .path, partition_old, partition_new, ! get_fs( partition_new .filesystem ) .move ) ;
 					
 			
 			p_filesystem ->Check_Repair( partition_new ) ;
diff --git a/src/Win_GParted.cc b/src/Win_GParted.cc
index f0a01541..ea39284b 100644
--- a/src/Win_GParted.cc
+++ b/src/Win_GParted.cc
@@ -624,11 +624,11 @@ void Win_GParted::Set_Valid_Operations( )
 		allow_convert( true ) ;
 		
 		//find out if resizing/moving is possible
-		if ( (fs .grow != GParted::FS::NONE || fs .shrink != GParted::FS::NONE ) && ! devices[ current_device ] .readonly ) 
+		if ( (fs .grow || fs .shrink ) && ! devices[ current_device ] .readonly ) 
 			allow_resize( true ) ;
 			
 		//only allow copying of real partitions
-		if ( selected_partition .status == GParted::STAT_REAL && fs .copy != GParted::FS::NONE )
+		if ( selected_partition .status == GParted::STAT_REAL && fs .copy )
 			allow_copy( true ) ;	
 						
 		return ;
diff --git a/src/ext2.cc b/src/ext2.cc
index 7b5e06d3..6fe84162 100644
--- a/src/ext2.cc
+++ b/src/ext2.cc
@@ -36,15 +36,15 @@ FS ext2::get_filesystem_support( )
 		fs .check = GParted::FS::EXTERNAL ;
 	
 	//resizing is a delicate process ...
-	if ( ! system( "which resize2fs 1>/dev/null 2>/dev/null" ) && fs .check != GParted::FS::NONE ) 
+	if ( ! system( "which resize2fs 1>/dev/null 2>/dev/null" ) && fs .check ) 
 	{
 		fs .grow = GParted::FS::EXTERNAL ;
 		
-		if ( fs .read != GParted::FS::NONE ) //needed to determine a min filesystemsize..
+		if ( fs .read ) //needed to determine a min filesystemsize..
 			fs .shrink = GParted::FS::EXTERNAL ;
 	}
 	
-	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow != GParted::FS::NONE ) 
+	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow ) 
 		fs .copy = GParted::FS::EXTERNAL ;
 		
 	return fs ;
diff --git a/src/ext3.cc b/src/ext3.cc
index 52f67b9d..3a19b5e8 100644
--- a/src/ext3.cc
+++ b/src/ext3.cc
@@ -36,15 +36,15 @@ FS ext3::get_filesystem_support( )
 		fs .check = GParted::FS::EXTERNAL ;
 	
 	//resizing is a delicate process ...
-	if ( ! system( "which resize2fs 1>/dev/null 2>/dev/null" ) && fs .check != GParted::FS::NONE ) 
+	if ( ! system( "which resize2fs 1>/dev/null 2>/dev/null" ) && fs .check ) 
 	{
 		fs .grow = GParted::FS::EXTERNAL ;
 		
-		if ( fs .read != GParted::FS::NONE ) //needed to determine a min filesystemsize..
+		if ( fs .read ) //needed to determine a min filesystemsize..
 			fs .shrink = GParted::FS::EXTERNAL ;
 	}
 	
-	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow != GParted::FS::NONE ) 
+	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow ) 
 		fs .copy = GParted::FS::EXTERNAL ;
 
 	return fs ;
diff --git a/src/jfs.cc b/src/jfs.cc
index e87e3fbf..55fdc371 100644
--- a/src/jfs.cc
+++ b/src/jfs.cc
@@ -51,7 +51,7 @@ FS jfs::get_filesystem_support( )
 		input .close( ) ;
 	}
 	
-	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow != GParted::FS::NONE ) 
+	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow ) 
 		fs .copy = GParted::FS::EXTERNAL ;
 	
 	fs .MIN = 16 ;
diff --git a/src/ntfs.cc b/src/ntfs.cc
index 0ab7c65c..f9e4e6a0 100644
--- a/src/ntfs.cc
+++ b/src/ntfs.cc
@@ -36,16 +36,16 @@ FS ntfs::get_filesystem_support( )
 		fs .check = GParted::FS::EXTERNAL ;
 	
 	//resizing is a delicate process ...
-	if ( ! system( "which ntfsresize 1>/dev/null 2>/dev/null" ) && fs .check != GParted::FS::NONE ) 
+	if ( ! system( "which ntfsresize 1>/dev/null 2>/dev/null" ) && fs .check ) 
 	{
 		fs .grow = GParted::FS::EXTERNAL ;
 		
-		if ( fs .read != GParted::FS::NONE ) //needed to determine a min filesystemsize..
+		if ( fs .read ) //needed to determine a min filesystemsize..
 			fs .shrink = GParted::FS::EXTERNAL ;
 	}
 	
 	//we need ntfsresize to set correct used/unused after cloning
-	if ( ! system( "which ntfsclone 1>/dev/null 2>/dev/null" ) && fs .grow != GParted::FS::NONE ) 
+	if ( ! system( "which ntfsclone 1>/dev/null 2>/dev/null" ) && fs .grow ) 
 		fs .copy = GParted::FS::EXTERNAL ;
 	
 	return fs ;
diff --git a/src/reiserfs.cc b/src/reiserfs.cc
index e7afcc25..e8ba9d85 100644
--- a/src/reiserfs.cc
+++ b/src/reiserfs.cc
@@ -37,16 +37,16 @@ FS reiserfs::get_filesystem_support( )
 		fs .check = GParted::FS::EXTERNAL ;
 		
 	//resizing is a delicate process ...
-	if ( ! system( "which resize_reiserfs 1>/dev/null 2>/dev/null" ) && fs .check != GParted::FS::NONE ) 
+	if ( ! system( "which resize_reiserfs 1>/dev/null 2>/dev/null" ) && fs .check ) 
 	{
 		fs .grow = GParted::FS::EXTERNAL ;
 		
-		if ( fs .read != GParted::FS::NONE ) //needed to determine a min filesystemsize..
+		if ( fs .read ) //needed to determine a min filesystemsize..
 			fs .shrink = GParted::FS::EXTERNAL ;
 	}
 	
 	//we need to call resize_reiserfs after a copy to get proper used/unused
-	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow != GParted::FS::NONE ) 
+	if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow ) 
 		fs .copy = GParted::FS::EXTERNAL ;
 	
 	fs .MIN = 32 ;
diff --git a/src/xfs.cc b/src/xfs.cc
index e64326f2..ac31c1de 100644
--- a/src/xfs.cc
+++ b/src/xfs.cc
@@ -37,7 +37,7 @@ FS xfs::get_filesystem_support( )
 		fs .check = GParted::FS::EXTERNAL ;
 	
 	//resizing of xfs requires xfs_growfs, xfs_repair, mount, umount and xfs support in the kernel
-	if ( ! system( "which xfs_growfs mount umount 1>/dev/null 2>/dev/null" ) && fs .check != GParted::FS::NONE ) 
+	if ( ! system( "which xfs_growfs mount umount 1>/dev/null 2>/dev/null" ) && fs .check ) 
 	{
 		Glib::ustring line ;
 		std::ifstream input( "/proc/filesystems" ) ;
@@ -51,7 +51,7 @@ FS xfs::get_filesystem_support( )
 		input .close( ) ;
 	}
 	
-	if ( ! system( "which xfsdump xfsrestore mount umount 1>/dev/null 2>/dev/null" ) && fs .check != GParted::FS::NONE && fs .create != GParted::FS::NONE )
+	if ( ! system( "which xfsdump xfsrestore mount umount 1>/dev/null 2>/dev/null" ) && fs .check && fs .create )
 		fs .copy = GParted::FS::EXTERNAL ;
 	
 	fs .MIN = 32 ;//official minsize = 16MB, but the smallest xfs_repair can handle is 32MB...