I recommend trying a driver cleaner as an attempt to resolve the problem. Currently the best driver cleaner I have used thus far is the one made by Wagnard as he is constantly updating it to resolve problems caused by installing drivers that does not install correctly. The cleaner included in my package also attempts to do this but it's currently not capable of uninstalling all packages from every driver listed.... It's really meant for installing the packages included in the modded driver. Follow the link below. http://forums.guru3d.com/showthread.php?t=379505 Also the Application Install: install source package not found may be related to the Catalyst Install Manager. So you may want to uninstall CIM or remove the CIM package located in Packages\Apps folder of the driver you are trying to install before proceeding to install the driver.