I don't know why your lagging my friend. You should be running CZ pretty smoothly, unless your running less than 512 ram, that's a different story. Like I said I have a 1.6 and GeForce MX 200 and I run it smoothly. Try doing a system restore and cleaning out unnecessary files and junk on your computer. Hope I helped a little!
Windows XP Home
P4 1.6 GHZ
nVIDIA GeForce 2 MX 200
Viewsonic 19" a90F CRT
I have had this rig since December 2001. I'm working on a new gaming machine that will dominate ALL!