When i tried to lunch Oblivion,it crashed to deskopt(black screen).I reinstalled the game 6 times but it didnt work.Then,i tried to play my other games but they all gave Directx/3D/Render errors.I reinstalled them too,but it didnt work :/.About a hour later,i tried to play flash games,and it didnt work too.Plz guyz,help me

Btw i downloaded Directx SDK,Directx Updates and some grapich card stuff.I think its not about drivers.

Sounds like you might need to reinstall your video card drivers.



Please post a dxdiag so we can see your PC diagnostics:
Start - Run (if Vista or Win 7, the search box acts like Run) - type dxdiag - hit Enter - "save all info" button - open txt file and copy/paste EVERYTHING here

Picture of process: http://www.windowsresource.net/cimages/gotodxdiag.jpg