Well, as an addendum to what I have been experiencing with my TX, the computer started doing the 'no video, no post' thing that the TX's are known for. I sent the motherboard off to have the issue resolved by reballing the nVidia chip and whatever else they do to get the video, wi-fi, etc. working again. As it turns out, the motherboard reportedly has a short-circuit somewhere between the board layers. I wonder if this 'short' was present while it was semi-working and is the cause of the standby not operating correctly.... I'll get the MB back in the next day or two and I'll investigate it further then. Thanks to you all.