People need to report, report, report if they're having this problem. It doesn't hurt to list the stations also. They may be able to narrow it down to compatibility with certain piece(s) of equipment being used at those stations.There appears to be a major issue with this release when trying to watch buffered HD-LIL channels. See this thread -
http://www.satelliteguys.us/dish-hd-discussions/137947-l510-bugs.html#post1395376