i have no idea why, but here are my specs
Pentium 4 HT CPU : Prescott @ 3200MHz
1.5GB RAM @ 400MHz
Nvidia GeForce FX 5500 PNY Tech. Labs 128Mb DDR graphics memory
Latest graphics drivers
DirectX 9.0c
Windows XP Pro SP3, Fully Updated,
The game is fully patched and is up to date.
Please anyone who can help...