I have a funny suspicion that these random reboots are connected to the Atrix modem.
Well...I have had my Atrix for a few days and now twice in the past 14 hours or so the phone would not power back on after touching the power button. This would be after some idle time either in my pocket or on the table.
It would come back on after some furious button pushing.
The first time the finger scanner had to initialize and it would not let me unlock my phone.
Strange for sure and seems random. But both times it happened I wan't even using the thing!
Had the atrix since launch day. Thi sis just started happening to me now. It seems to be a very very bad lag. Fingerprint sensor stopped working. Battery pulled about 3 times.