At times when I try to "tape" a program I am watching - it says "recording programed" but it doesn't tape (the red "taping" light doesn't come on". This happens occasionally then it seems to work fine. Anyone else experience this or know why this happens? We can't "pause" the program either.. but if we program something that's on later, it will program it. We delete programs we've taped and watched, so we're not full, at about 27%.