Hi I have 512ram and xp home on a p4 1.8gig system and it runs fine, I am however using a gforce2mmx. perhaps u need to try to download again or check all the files expanded in the right places, I use xp's exractor not winzip so have to put all my files in place by hand, you never know! hope this helps btw have you tried ScottA's site http://skyscraper.fortunecity.com/tyrell/769/index.html more dinos Dave