When i turn the PC off for the night then wake up I find no power going through it, My first thoughts are a dry joint, but all the components are brand brand new. When i tilt it, or punch it if need be the power usually suddenly flows back through the mobo. I have checked for lose connection on the mobo and power supply, but none are visable. Does anybody have any idea where to start on this?

On another note, sometimes it takes ages to start, then when the monitor comes on it says in the BIOS running in safe mode, please re-set speeds.