My computer has been freezing 2-3 seconds and makes an audible sound. When it freezes I lose control of the mouse. It sometimes will do this several times in a row. Very annoying. I have ran hard drive and memory tests that all passed. Also defrag the hard drive and removed programs from automatically starting up but the problem still exists. costco conceirge service want to do a system restore but I wonder if there is another fix. I notices in the event log there are many "bowser errors" and they seem to be associate with the the computer hanging up. In the application event log I am also noticing ATIerecord errors that state "ATI EEU failed to post message to CCC". Can the "bowser" errors or the ATIerecord error be the source of my freezing problem? If so how can I get these errors to stop. If not what could be causing this? Please Help!!