I know you've probably done this- but just in case - Have you tried just rebooting it? 
Barring that, if it works after a cool down then I'd get the top off and get all the dust out, make sure the fan's working etc. If it doesn't I'd still get the top off, do all that and check connectors, any chips in socketsetc.

Barring that, if it works after a cool down then I'd get the top off and get all the dust out, make sure the fan's working etc. If it doesn't I'd still get the top off, do all that and check connectors, any chips in socketsetc.
Yes, you obviously got the same mailing we all did - I hate those rebate forms though - don't you?dmchapman said: