I recently unlocked/rooted my Xoom and flashed Tiamat 1.4.4 kernel. At some point over the next few days, I noticed that my Xoom was randomly doing full reboots periodically while idle with the screen off. I started backing my overclock down from 1.5, to 1.4, and then to the stock 1.0ghz. I have also tried doing a full factory wipe from CFW and then restoring from the backup I created when I first flashed the kernel, and the reboots still persist. I also find it odd that I can run a stress test in SetCPU for 1+ hour with no reboot or hang. Is anyone else having this issue on this kernel? Is my only option to flash back to the stock kernel? Could this be a hardware issue?