Solid red, overheated.
Flashing green, bad bios load.
Flashing red-orange, bad video output.
Flashing orange-green, AV cable not plugged in properly.
Flashing red-green, system faliure (can be alot of things).
well Heres A basic Breakdown on the indicator lights hope it helps..
a lot of times i have seen this issue and been able to fix by disassembling
cleaning and reassembling so I would try that first.