I am sorry to hear you are having this problem.
In order to try and figure out what may be causing this, can you please;
Press the Windows key+R at the same time (to bring up the Run dialog)
In the run dialog, type in "dxdiag"
Once the DirectX Diagnostic Tool comes up, please provide the computer's;
(from the System tab)
1. Operating System
4. Page File (both used and available)
(from the Display tab)
5. Graphics Card Name
6. Graphic Card Driver Date
Please provide us this information so we can further assist you.