I've reinstalled twice and I'm using the US DVD version of the 1.4b patch and it says it can't identify the version. Don't tell me it won't work on this new special gaming computer...
By the way if you think it has to do with specs...
EVGA NVidia GeForce 7800GT (not sure about overclocking)
Athlon 64 X2 4800+ @2.4GHz (regular speed, non-overclocked)
2 GB Corsair Value Select memory