I have an S2, Model 540, with SW version 7.2.1-oth-01-2-540. I have no idea how long I've had this version as I don't generally care about that. Today I just learned about TiVo Desktop 2.2 and TiVo to Go Back (I know, I'm slow). I had previously transferred some shows off the TiVo to my PC but I just found out today that I can send stuff from the PC to the TiVo. I sent a couple of shows over today and ever since, my TiVo has been constantly restarting. Right in the middle of a show it will suddely go black and then show the Powering Up screen. It's happened 4-5 times (that I know of) in the last 12 hours. Did I do something that broke my TiVo? Is my HD going bad and the timing is just coincidental? Are there problems with Desktop 2.2 and is it possible that installing that on my computer could have an effect on my TiVo? It just seems odd that it's worked great since I've had it and then suddenly today when I learn of some additional capabilities and make use of them, it starts to act up. Help!! What can I do?!!?