Recently I was messing around with ati tool attempting to overclock my x1900xt. When I was testing one of the clocks I received a lock up and had to reboot. Upon reboot my computer went to a blue memory dump screen and wouldn't even load the desktop. Finally, I booted in safe moad, uninstalled all ati software and reinstalled everything, including ati tool. Everything went fine except catalyst control center. After boot up I get an error report that says Catalyst Control Centre: Host application has encountered a problem and needs to close. If I try to load ccc on it's own I still get the error. I have uninstalled and reinstalled drivers and ccc several times to no avail. It is puzzling to me that I can do a complete reinstall of catalyst control center and it still won't load. Any ideas on what I can do...or what I did.