Silent Hill 2 PC

Boy it's not my day. I bought the game last night and had trouble running it. It installed fine but tells me that it crashed the last time I tried to run the game. I get the start up screen and select play game and when I click on it the screen gets all funny with some kind of green fuzzy looking data marker or something like that. I downloaded all kinds of new drivers that the read me file suggested and Nothing fixed it. I read the minimum system requirements and I have the minimum except I don't know if my computer has a 3d accelerator card with 32MB of VRAM or not and I'm not quite sure how to check that. Im kind of thinking that could be my problem but if I don't know how to check if I have it I won't know for sure. I have 866MZ pent3 processor with 256 mem.48xcd rom with reg mode Help if you can Thanks....BT........Oh by the way I also uninstalled it then reinstalled it to see if that was the problem and it didn't do any good.