Was given this Pansat already programmed for Bell Expressvu. Hooked it up 2 days ago and all worked well until this afternoon. All I seem to get is 'wait for picture!!'. Rebooted and turned to channel 300 (read do to this on this site, but not sure if it applies to every reboot situation). This reboot was successful for about a minute and then it went back to 'wait for picture'. Level and quality of signal are 80+ and 99% respectively. Didn't want to muck with settings....yet. Any suggestions?