Help! Has anyone had the problem of their program guide on the PVR 721 working only sporadically ever since the software upgrade Dish made at the end of Aug? I only get the program guide occassionally since that time. Because of this, I had to leave Dish after having a horrible time with them first telling me I needed an equipment replacement and then finally admitting it was a known problem with the software upgrade. I called today to ask if the problem had been fixed and technical support said they had it in their database and it had not been fixed. But customer care said they had no record of any such problem. Is anyone else having this issue or know a fix???