I downloaded Launcher Pro today and it works quite well now. The problem I had was that the moving/deleting process you described didn't work on the first home screen, where the pocketbook widget used to be. Holding an icon didn't do anything, it worked on the other home screens though. With menu bar I meant the dock (not really sure if this is the right word) that appears on the bottom (or side in panorama mode) of the screen.
But as i said, Launcher Pro basically fixed this. Thanks anyway!
