Blender Text Problems

Hi Everyone! I have a problem in Blender and a really bad one. I can’t see the text in the menus and other parts of the Blender application in which there should have been text and that’s my problem in my Windows OS. In my Ubuntu system, I can’t see the grid and I can’t use many of the functionalities of Blender. Please help me.

===Specs of my PC===
Operating System: Windows 7 Ultimate 32-bit/ Ubuntu Linux 12.04 Precise Pangolin 32-bit
PC Manufacturer: Samsung
PC Brand: Samsung N100 Series
CPU: Intel Atom
CPU Speed: 1.66 GHz
Memory: 1.6 GB

Any help will be appreciated

1st thing to try is to update your graphics card drivers