I thought it would be great to see a forum where people can ask this question and get a reply before having to spend money on the game

Well I'm gonna start it off...
I need help with the following, I am currently using Windows Vista Home Basic, and i hate it, but thats not the problem. I'm going to downgrade to XP Pro, and need to know if this game which doesn't work for me now is stopped by Vista or my hardware.
The game is Neverwinter Nights, and heres my specs:
Dell Inspiron 6400 Laptop
Intel Pentium Dual-Core T2080 Processor (1.73GHz, 533MHz, 1MB L2 Cache)
1024MB 533MHz Dual Channel DDR2 SDRAM memory
Intel Media Accelerator 950 Graphics Up to 256MB shared graphics memory
60GB SATA Hard Drive
and a Fixed Internal 8x DVD+/-RM Drive
Help would be greatly appreciated, as it works on another Laptop we have, but will it work here? ???