vip 722 recording issues

[jpos832]

so ive got a show that's set to record every tues at 8 pm mst, but the past couple weeks it hasnt been recording the whole show. last week it recorded the first half of the show, but the epg said the wrong show name. this week it only recorded the second half. i went into the recording history, and it shows that it started at 8 pm, but the recording didnt start until 830. there are no conflicts with priorities. anyone else having this problem? or any ideas?