Hi all, Would appreciate a bit of advice on my new pc I built. Everything works perfectly the majority of the time but I keep getting a hang on booting sometimes where nothing will open or work. Rebooting always solves the problem. I also had the screen go black the other day mid game with the pc becoming unresponsive again resolved by a reboot. I've looked at the obvious: - All drivers uptodate - All hardware properly seated and connected - Temp monitor reports 42 degrees on the cpu during the game and GPU's reporting 38 - 40 degrees. - All 7 rad fans operating with no unusual heat coming from the system and flow rate is constant. Build is: i7 2600k 2 x EVGA GTX580 Hydrocopper 2 Maximus IV Mainboard 8GB Corsair Vengeance RAM 120GB OCZ Vertex 3 SSD 1TB 6Gps WD Caviar Black HDD Corsair AX1200 PSU LG Blue Ray Optical Windows 7 x64 latest service pack Coolant system is custom. So any ideas?