Advertisements Not sure if this problem is related to v6.3a because I've had that release for several weeks and this problem just started yesterday. The symptoms are unlike any hard drive issues I've ever had with any of my Tivo's, though .... Freeze #1: Came home last night and found the Tivo video was all gray. Remote and front panel were unresponive. I've seen this gray screen before when the Tivo's tuner was still on the Showcase Download channel, but never had the Tivo frozen on it before. Pulled power to reset Tivo and all seemed OK. Freeze #2: Later that evening I was cleaning up some unwanted recordings from the "To Do List" when the Tivo suddenly froze and again didn't respond to remote or front panel commands. The Tivo/DVR background animation video was also frozen. I waited about 20-minutes just to see if some background process was moving very slow. Pulled power to reset and again all seemed OK. Freeze #3: Seemed to work fine most all of Christmas day. But after dinner turned on the TV and the Tivo video was frozen on whatever channel had been active, almost like it was stuck on "pause". Again the remote and front panel were unresponsive. Pulled power to reset and it's been working fine the rest of the evening. Have any of you with v6.3a on your HR10-250 had "freeze" problems like this develop suddenly, well after your Tivo updated to v6.3a? Perhaps it's related to recent Guide Data problems described here .... http://www.tivocommunity.com/tivo-vb/showthread.php?t=332449 I suppose it could be an unusual hard drive issue, but the symptoms are not typical because there has been no audio/video stuttering or sudden reboots. I'm hoping I get v6.3b soon to see if switching the drive's boot parition helps any. Or I may just roll back to 3.1.5f. Thanks for your ideas! ====================================================== Update 12/27 .... Freeze #4: This morning DVR was again hung on "gray screen" freeze. I wonder if my nightly "phone homes" trying to download 6.3b is causing some issues? Freeze #5: A few hours after restarting this morning my HR10 again hung with a "gray screen". It was recording a Season Pass at the time from my local Seattle NBC station (SD feed, not HiDef), and hung about 48-minutes into the one hour show. Freeze #6: At 10:07pm, finally caught it happen while watching my HR10 .... video/audio froze for a few seconds, then screen went gray and Tivo was totally unresponsive to any remote/front panel commands.