Fedora 11 + Blender - weird problem

[jaymeayres]

Hi folks! I'm trying to use Blender but look what is happening [1]?
Everything is working well, but when I try to work with Blender, it happens with the menu options. I think the problem may be in my Video Card. What tests should I do to see if the problem is the Video Card or Blender?
PS: Do not install any driver for AMD, the Desktop Effects are working perfectly. I just had to disable the modset because with it enabled my computer was very slow.

[1] http://www.jaymeayres.com/arquivos/blender.ogv
[2] http://fedoraproject.org/wiki/Bugs/C...rd_graphics.29

Cheers.