Comment 4 for bug 82654

It seems that it's a bigger problem for smaller windows. If I have gnome-terminal open in 80x50 character size and I move it towards the gnome-panel, it locks the gnome-panel's title bar just under the gnome-panel, but if I make it smaller, it will happily slide under the gnome-panel when I move it, especially if I move it quickly and then release the mouse while it is under the gnome-panel. The copying files/moving files windows are therefore especially prone to this behaviour.

It's useful to know about the ALT+click feature, though. I wasn't aware of it before.

A possibly related behavioural bug is that if you have a large window that takes up most of the screen height, it is hard to move it up to the top of the screen, ie just under the gnome-panel. eg I have a VMWare-console which takes up all but about 50 pixels of the screen height, and I can move it so its underside is at the bottom of the screen, but to move it back up so that its top is just under the gnome-panel, I have to violently move it downwards so that it disappears partly off the bottom of the screen and then violently swing it back up. Otherwise, it doesn't have enough 'springiness' to move up all the way.