<p>Hi,<br /><br />I've read in this forum that Catalyst 6.2 causes problems with Sim City 4. Yes, it does! I have a 3.2 Ghz PIV, 1 GB ram, ATI Radeon 9600 128 MB. There is terrible lag. After reading in this forum, I created a new hardware profile. Uninstalled the Catalyst 6.2, installed Catalyst 5.9.<br /><br />Now Sim City works as it should. But each time I boot my computer I get a cls.exe error. And the 5.9 catalyst is installed in both hardware profiles. The control center is not there any more, it isn't in the settings any more but when I rightclick on my desktop.<br /><br />Any idea? How should I install and use the two profiles so that I have catalyst 6.2 in my normal system and 5.9 in the Sim City-profile?</p>