Thanks Save - can't think why I would have blown the surface mounted chip as I haven't plugged / unplugged the mouse with the power on. Will try the cold solder idea. I take it that overall system heat wouldn't do this - the machine eminates a lot of heat from the cybervision video card?
The heating up and cooling down of the system *can* agitate a bad solder joint - effectively simulating the plugging/unplugging of a controller or mouse.
Too bad these systems were designed to be as cramped as they are. Cooling is a total joke. I wouldn't hesitate fastening some small heat sinks onto some of the typical problematic chips, including those on your video card.
@Tension: failing caps usually affect the CPU (3640) or sound circuitry. Are those leaky bastards near the CIA's too?
