|*decent* is a matter of a opinion. The 6200 sucks for gaming. You have the LE version which makes it even worse. Having 1GB of RAM isn't as big a deterrent to *decent* game play as is your crappy video card. Unless you're happy with playing games at the lowest settings?|
My 1st question to you is, why aren't you running SP3? I'm sure you're going to say it worked fine with SP2, but that doesn't answer the question. SP3 has been out for over 2 years now...why are you still running SP2? And why are you installing the drivers from safe mode?
Do you have a cleaner? If not, download & install CCleaner-Slim. Run both the cleaner & the registry scanner...remove everything they find.
direct download link to CCleaner-Slim
After running CCleaner, boot into safe mode & uninstall the nvidia driver (again). Boot into Windows & let the generic graphics driver load. Run CCleaner again. Disable your anti-virus program, then install the latest nvidia driver. Reboot & try your game(s).