I have a DP 2.0 G5 that has started acting funny over the past week. I will press the power button and it will do the normal thing (fans rev up) but then it just shuts off mid way through boot. It never gets to the apple logo because it shuts down before that. This happened once a few months ago where the G5 was plugged into an extension cable and it shut off, so i just plugged it into the wall and it fixed it. Now, no matter how many times I unplug and replug it in, it will shut off randomly. Is this the death of my PM G5?