In Level Graphics Fritz

I've just got this game and when i get into a level all i can see is random sections of purple and black that change as i move instead of the level background. I can still see the trap bar and the text above the level but the rest is unplayable. I have a Toshiba Sattelitte A330 that is clearly the minimum specs and I have updated my graphics drivers, Direct X and my C++ files as suggested in a previous forum.
I have also lowered most of my graphics settings in hope that this would change it.
Are there and other suggestions of what i could do in order to get it working?
Thanks