Well I screwed up again

Holly Toledo! 
I screwed up the darn game again. I had to reinstall it because the crosshair got screwed up and was showing up off to the side of the screen (no good for aiming). Everything was working great just before and now after I reinstalled it, I'm having the same problems as I did when I installed it the first time. I think that I followed all of your guys' directions properly when I reinstalled, you know: turn off anti virus, run config, switch off dual pass render, check DirX version, newest video drivers, 3.1 update, 3.1 NoCD crack, blah blah blah. But to no avail!
The game just runs really slowly even in the main menu. I had the same problem when I installed it the first time, but I can't remember what it was that I did to fix it.
Should I defrag my C drive?
Any other ideas that could help me out will be greatly appreciated.
Darcy

I screwed up the darn game again. I had to reinstall it because the crosshair got screwed up and was showing up off to the side of the screen (no good for aiming). Everything was working great just before and now after I reinstalled it, I'm having the same problems as I did when I installed it the first time. I think that I followed all of your guys' directions properly when I reinstalled, you know: turn off anti virus, run config, switch off dual pass render, check DirX version, newest video drivers, 3.1 update, 3.1 NoCD crack, blah blah blah. But to no avail!

The game just runs really slowly even in the main menu. I had the same problem when I installed it the first time, but I can't remember what it was that I did to fix it.
Should I defrag my C drive?
Any other ideas that could help me out will be greatly appreciated.
Darcy