I have installed the parallels trial a few days ago on my MacBook Pro 15", used the express install settings as set by Parallels, also then upped the RAM for the VM to 4GB. VM is set for best performance. It appears that if I suspend my MacBook with the VM running (Simply closing the screen) and then wake the system up by opening it the machine will sometimes hang on the Windows desktop and restart or just restart straight away. That is OSX restarts and obviously the VM is discarded from memory and I have to boot it again. I don't know much about Macs and don't know where to lay the blame. I can understand the VM crashing for whatever reason but is it normal for it to take out OSX too ? Typically it crashes after being suspended for a long while and or when disconnected from power and woken up with the power cable unplugged (Battery is still at 90%+ though) when it crashes. To me it feels like the MacBook pro is to blame, something feels as if it's unable to deliver enough power or initialise something when being woken up. Anyone got any ideas? Or similar experience perhaps. Tomorrow I will try the same but suspending just OSX with some apps open but without the Win8 VM running to see if it's the MacBook at fault or not, I figure if it crashes with no VM running in Parallels than I should repair it under warranty.