The game crashes when I try to launch it. I can't even see what the error message is. I noticed that the game does not recognize my video card (nvidia 8800gt) so I used driver sweeper after uninstalling my drivers and then downloaded/installed the newest driver but my card still isn't recognized. I bought the game via steam and my pc components are
Windows XP Home Service Pack 3
AMD Athlon 64 X2 Dual Core Processor 4200+
NVIDIA 8800GT
2 GB Ram
This is the first game I've ever had a problem running. I bought the game about a year ago but uninstalled it because it would instantly crash at launch. In the past month I've played Portal 2, The Witcher, Stalker, Fallout: New Vegas with no problems. I just installed Fallout: New Vegas a few days ago and I launched it today for the first time and it recognized my video card.
At the launcher does it detect the 8800GT? Try to run the game again and reattach us the HPL.log file. We should do a clean driver installation again I think.