Now that your post has a more meaningful subject line, and is moved to the appropriate forum.. try reading the other posts in this board. The "OpenGL subsystem" error is mentioned quite often, as is the fixes for it. There's also the handy "search" box in the upper right-hand corner of the page, where you could type in the full error and probably get the answer very quickly.
(In fact, if you click the "Troubleshooting" link in the chain above, and look at the Troubleshooting board, there's a handy-dandy sticky thread at the top of the page for "Frequently Asked Questions".. I'll bet the answer you seek is right in there.)
