In gnome, whenever I click on a contextual menu item (eg. right click on a window in the task bar) and then hover over a sub-item (eg. Move to another workspace) that is expandable, the submenu is not shown.
In order to show the submenu, I have to click about 4 times with my left mouse button OR leave the item again and re-hover the item with my mouse.
Why does the submenu item not expand automatically on the initial mouse-over (hover)?
Update: this is a pretty fresh install without any special interface software, just the default gnome installation. Ubuntu 10.10 with latest updates.
Also, this problem has been here since I installed Ubuntu a couple of months ago (the reason it is still a fresh install is because I rarely use Ubuntu, because of bugs like these).
Update: My visual effects were on "normal". I then set them to "none", and now this issue has been resolved.