Sorry yrag....was rudely interrupted by sleep and other duties.
Well I did the uninstall of messenger and the ATI drivers in safe mode, then ran the driver cleaner and a registry cleaner to remove all instances there of ypager and ATI. I then ran into problems reintalling the ATI drivers and software in safe mode, getting the message that installation could not continue because Windows could find no related hardware or software.
When I rebooted in normal mode this message came up: Fatal Engine Execution Error (10x7927baco) Event log says that a device attached to the system is not functioning...MS help and support says there are no knowledge base articles on this error, so I'm more at a loss than before. However, it seems to be a Windows issue, System Restore has not rectified the problem, and I wonder if I should do a Repair Installation of Windows before proceeding further with the ATI/ypager issue?