Currently, gtk2 places the bubble help below the mouse cursor. This is
annoying, to say the least, when going through menus. A better way would be
to either: 1) make the bubble info transparent or 2) position the bubble in
the direction where the mouse came from (kinda like a mouse tail). The
second option would allow a user to read the bubble help and at the same
time allow him/her to see the next item found in the direction he was
moving the mouse in originally.