Help! We came home to find that our 722dvr dumped all our recordings with the exception of 3 recently recorded tv shows. The equivalent of 45 HD hours of data. Lots of stuff we didn't want to lose. Our schedule for future recordings was still intact. Our question... Anyone have this happen before or have any theories on what it could be? Misc. Background Info on things tried. We chatted with DISH...told them about this and an occassional problem with fastforward and rewind losing our spot....we mentioned the latter in-case it would help with their troubleshooting. Dish folks tried to check it out...said our DVR health looked good...had us reset the thing...said they would forward the issue on to engineering...and told us to call them back ASAP if it happens again. No complaints...I realize this stuff can be a mystery....but I don't want to lose data like this again. We do have an EHD and will start backing up everything to it...though that wasn't our intent. We merely wanted to use it for additional storage. We have been upgraded to software L614.