This thread is created to offer suggestions for remedies for performance issues and installation problems a few may experience every now and then. Here are a few that I know of. 1. Use programs like Driver Sweeper or Driver Cleaner after you've uninstalled your Cat drivers. 2. Uninstall method 1 for manual uninstall of drivers. 3. Uninstall method 2 for side-by-side configuration is incorrect error. 4. If you've tried any combination of the above and it hasn't worked I suggest that you remove your pagefile (create no page file). Goto Advance System Settings, Advance tab, Performance Settings button, Advance tab, Virtual Memory-Change button. Select the hard drive using pagefile and select no page file. Hit the Set button then hit ok hit the apply button. Reboot as instructed (using win7) Then re-create your pagefile. Next Rebuild your indexing (if you use it). Type indexing in start's search box. Click on Index Option. Select the Advance button. Then select Rebuild button. This could take several minutes so leave the computer idle. (using win7). Only use methods like this to fix a driver related problem. Once the driver related problem is fixed discontinue use of these type of methods. All you need to do from then on out is to use the ATI Catalyst Install Manager found in Uninstall Programs (Win7) or Add or Remove Programs (XP) Keep in mind that these are suggestions so you perform them at your own risk.