Hi, I have a Connect 3d graphics card that uses the ATI Radeon drivers. Mobo Asus P5AD2 E-Premium. I've never had any problems un-installing ATI drivers and then installing new updated drivers. That is, untill I installed the Process Guard when I paid for it a few weeks ago. What happened yesterday is that I un-installed the ATI drivers OK. But when installing the new ones I got errors depending on the "version" of 5.10, by version I mean the driver, catalyist or ATI control panel versions. The driver requires an administrator account on the PC, catalyst & Control panel cannot find elements to install. I use Ghost to restore my C: partition, so, quickly as it were, doing that, I eliminated various things in my system, nothing worked, I had placed PGuard in learning mode to no avail. I also closed other programs, i.e., anti-virus etc. There was only one thing left to try and I did, I uninstalled Process Guard. that was the problem. The ATI drivers now install witout a problem. So, if I re-install Process Guard I have to go through the process of it learning all my programs etc. Not nice.