HELP ME PLEASE

whenever i try to start a game using OpenGL i get this error message:

The C:\WINDOWS\SYSTEM\OPENGL32.DLL file appears to be corrupt.
Reinstall the file, and then try again.

ive already reinstalled, and i get the same thing, then it says the path to the game i was trying to play could not be found. anyone need more info? Help me please guys! and gals.

the problem occurs also if you use the downloaded files from ms?

cheers,
martin

yeah it does.