Im having a bit of trouble with me PS3. When I put in a game or a DVD it starts to load then I just get a blank screen. You can hear the machine working away as if its trying o load but wont load the game or DVD. To turn of the PS3 I have to flick the power switch on the back. When turning it back on it comes up with a message saying an error occured do you want to report to Playstation. Anyone had this problem before and know how to fix it?