Hi guys, so I bought and built a new pc (im a complete beginner and this is my first good build for myself) specs are as follows: CPU: Intel Core i5 2500K Unlocked, S1155 Mobo: Asus P8P67-M PRO, Intel P67 Express Case: Inwin DRAGSLAY Dragon Slayer M-ATX PSU: 650W PSU, Antec TruePower New Modul CPU cooler: Antec Kúhler H2O 620 CPU Watercoole RAM: 8GB (2x4GB) Corsair Vengeance Blue GPU: 1GB MSI GTX 560 Ti Twin Frozr II/SO Hdd: Sata 3 Seagate barracuda 500gb Right so I put it all together and it turned on, installed windows 7 ultimate successfully and then started to install programs and drivers. For some reason, even after the graphics drivers have been installed and updated windows refuses to display the aero theme staying only on basic. I was just messing about with the settings trying to work out what was wrong when the pc suddenly turned off and restarted and gave me a message saying 'overclock failed. press f1 for setup' or something similar yet I haven't overclocked anything. The only thing I can think of is that the gpu has come factory overclocked. Checking the temperatures of the mb and cpu etc, they all seem to be cool and normal. Anyway, i'm on the pc now so it works kind of. I'm guessing all these problems are caused by the graphics card or something... but any help would be greatly appreciated!