Can't seem to get my Inpirion to boot. A few weeks ago it refused to boot. Powers up but then two led's appear, scroll (arrow down) and caps (A) begin to blink and the power goes out. I tested the components, hdd, processor etc, and assumed the problem to be the motherboard which I replaced. Worked fine for a week or so, then the same thing happened. Bought this new and did no work on it prior to the problem. This problem can't be that unique. Any suggestions?