Interesting enough, when I contacted DirectTV about the guide refresh problem they acknowledged an "issue" but didn't go into detail about what the problem was. They said they are working on fixing it in the near future. I am relatively certain the problems have something to do with DirecTV rearranging the channels many months back. That is exactly when I began noticing the guide problems (BTW, I have an older Sony SAT-B1 unit).

Bob