Some problems are occasionally reported whereby an ad3000ip gets "stuck" on a channel and resets itself continually. The best solution for such things is to completely switch off the receiver (in your case, the pc card) and remove the LNB feed. switch back on. Tune to a different channel. There will be no signal of course. Then reconnect the LNB feed.
Worth a try but it's just a shot in the dark.
While switched off you should also remove and reinsert the CAM. Check the contacts are clean.
2old