So far I have encountered this problem with Diablo, Starcraft, Warcraft III, and Might and Magic VII. I am running Windows XP. The colors in the game are usually weird at first.

That would make sense, except that Diablo was made in 1996 and isn't very resource intensive. BTW I have 224 MB of RAM, 32 MB of Video RAM (integrated... yay -_-) and an AMD Athlon 2200+.

Gee that would have sounded like quite reasonable system at the start of the century. But nowadays, even for windows 224 MB RAM is not really that much. And games are very, very graphic card intensive. Remember that your monitor is also competing with the games for the graphic conversion for both game & apps, etc. It's one thing to have a 32 MB ram card, but quality makes ALL the difference! It really does. You could have a 64 mb ram card that's not as good as a 32 ram card due to its efficiency & speed. Cheap cards aren't worth the printed circuit boards (PCB's) they're printed on. I'm not trying to put your system down in any way at all, but just & only trying to make a point. 224 mb ram is small by today's standards. I've heard AMD's are quite good at game purposes (depending upon quality of your entire setup & conglomeration.)