I have a 722K and I have set up a bunch of groups and timers to record into these groups (Kids, TV, Movies...etc). Almost once day I turn on my DVR and the groups are gone until I go in and ask the DVR to sort by groups and then everything is ok. I don't have to recreate the groups, just till it to sort by My Groups. This is really annoying. Why doesn't the sort stay on permanently? Am I doing something wrong?