Very hard to say (although, I'm no IT guy) - freezing can be caused by any number of things.
Maybe the recent heat has knackered your graphics card?
What temps were you running during the recent heatwave? I took my side casing off to be on the safe side.
Maybe the recent heat has knackered your graphics card?
What temps were you running during the recent heatwave? I took my side casing off to be on the safe side.