Hi all My Mac has been a bit funny recently, when I put it to sleep, the morning after it is on the login screen so it has reset in the night. Came home today, logged on and it switched off. Took all the drives out thinking my SSD had died Came to reinstall Snow Leopard on a fresh HDD and mid install it switched off Switched graphics cards and it did the same Took 6 of 8 memory sticks out and still the same. It doesn't switch off when on the install disc page, but after that I can't do anything! I have tried PRAM and SMC reset as well as unplugging the machine and removing the battery. Any ideas anyone?? Could really do with some help here please as I am quite worried!