Welcome to the forums.
Firstly, read this thread
http://www.lucasforums.com/showthread.php?t=155333) about graphic card drivers. if you are fully up to date on those (which i doubt looking at that screen), you can post your dxdiag and again, that thread explains how to do that.
If you've bought brand new PC's, you STILL MUST update all your drivers.
DMUK