On my computer, windows will at some point freeze and have to be restarted. The mouse or keyboard will not work and the programs quit running but you can still see the picture normally. Here are the errors that I believe cause it as displayed in Event Viewer: Event Type: Error Event Source: SAVRT Event Category: None Event ID: 6 Date: 5/11/2008 Time: 9:09:38 PM User: N/A Computer: NONE-AF9FE5788A Description: Incompatible version of SYMEVENT.SYS is loaded. Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7000 Date: 5/11/2008 Time: 9:09:38 PM User: N/A Computer: NONE-AF9FE5788A Description: The SAVRT service failed to start due to the following error: A device attached to the system is not functioning. For more information, see Help and Support Center <-- Address given doesn't work They always occur with same time stamp and "SAVRT" seems to cause "Service Control Manager". "SAVRT" happens first. There are no errors in Device Manager. Can anyone help me with this situation?