Started Suffering from the same problem, button has stopped working, unforunately the case is over 2 years old and I dont fancy having to send the whole case back for RMA, would be cheaper buying a new case, lol
brilliant idea, I've now done this and the comp powers up every time, now tho, I have no reset switch, but, this is much better than a machine not powering at all :D
case number #5718634
[EDIT]
Got it working again, can you cancel the RMA please :) thanks..