Windows 7 Cs 1.6

[gunnarjs]

I can't run CS 1.6! LOL. I can run CS:S just fine, and other more demanding games, but when I try to run 1.6 the screen just flashes constantly and it says I'm getting 7 fps (I avg maybe 150 on source). I've tried running in compatability modes, but to no avail.

Running Win7 64 bit.
Intel Q6600
ATI Radeon HD 4760 512 MB
4GB DDR2