Poor performance in the demo.

[membrain]

I suggest you do the following things additionaly:
1. Defrag your hard drives.
2. Disable file/folder indexing (Rightclick on hard drive > Properties).
3. Click start>run, type "msconfig.exe" and check the panel (don't know what its name is on an English Windows. I only have a German Windows) where the programs are which are beeing loaded whith Windows and disable unnecessary entries (for example "Acrobat Reader", "Quick Time" and so on). If you limit only to essential programs this should give you a few more Megs of free RAM.
4. Disable Antivirus while playing
5. Click start>run, type "cmd" and type "CHKDSK /f /r" to the black window that pops up. It will ask you for doing the error-check on the next start of windows. Type "Y" to confirm and restart. Then let the check run and maybe there are some file system errors which will get fixed.

If these tips won't help a bit I guess you have an incompatability of drivers and hardware or drivers and game.

membrain