Hi everybody. I have a problem while using parallels desktop 8 with win 7 guest OS. When I'm playing some games, after hours the mac reboot without explaining the reason. Generally, the problem arrives when temp is 50° - 52° celsius... I don't know if it is too hot for my iMac but I don't think so. Have you same problems? My config: iMac 27' 12 GB RAM 3.1 ghz core i5 AMD Radeon HD 6970M 1024 Mo