Re: Common problem i think
I have two
1) try the latest driver, latest official WHQL driver would be 169.61. Its officially Quadro driver, but it will install on 6200 as well. Also give 174.16 a go.
2) try switching from directx render mode to opengl render mode. you have to edit ut2004.ini or ut2k4.ini file. Sorry forgot about the details, and can't look it up now.
Windows 8 the next big failure, right after Windows ME