It's a 2896-Q4U. There isn't anything I can do to get it to power on, it works whenever it wants to without regard to temperature, battery or AC adapter, flexing the chassis, bumping the chassis, or time on or off. Any leads are very much appreciated. It just went out of warranty about six months ago.

My R40 has a very odd problem that I can't quite pin down. Most of the time when I try to start it with the power button absolutely nothing happens, no LEDs, no nothing. It doesn't matter how many times I try to start it, it just doesn't do anything but then sometimes it will magically start. When i...