Please help me with Call of Duty 5

Hey, I'm having some troubles starting CODWAW. THis is what happens: put disc in, press solo, shows CODWAW box, screen goes black, then it crashes. I'm not sure what's going on because I'm able to play Call of Dut 4 perfectly. Here is my system: OS: XP, Video card: nvidia geforce 9500GT, 2GB of Ram, 55GB of hard drive. I used the "Can you Run it?" and they said that it would work fine. Please help me.