Uhm, thinking thinking!
One thing might be to update your graphic card drivers if you haven\'t done that.
Another one... is.. well, I have noticed that the \"widgets\" (that are the unities that constitute the GUI) are not perfectly resizing with the resolution.
Which is the resolution you are running? Maybe it is too \"short\" in height compared to the resolution that has been used for doing the GUI!
Just some absurd suggestion,
Ary