Grid and Model not appear.

Hello everyone!
I’m new in the community, sorry for my bad english I’m from Brazil.

I have a problem with blender in ubuntu 12.04:

http://img259.imageshack.us/img259/5660/blendererror.jpg

I never have this problem in the old versions.
In the ubuntu 11.10 the blender was working great

my system:

Is a mobile pc
Pentium® Dual-Core CPU T4300 @ 2.10GHz × 2
32-bits
OS - Ubuntu 12.04 LTS
RAM MEMORY - 4GB
VIDEO - Silicon Integrated Systems [SiS] 771/671
VIDEO MEMORY - 128, emulated

my blender:

2.63.5
32-bits

the error also appear in other versions.

I hope you can help me.
Thanks!