Last night my house lost power. Now when I boot the G5 after it is done loading with the grey screen and the grey apple, it switches over to an all blue screen. After about 5 minutes I get a pointer, but that is it. I thought something bad had happened to my drives so I took some HDs from the G4 and put them in the G5. They boot to the same blue screen. I've run a plethora of tools and they all come back and say the hardware is working just dandy. Any ideas?