i have a phillips hdr31204 which i upgraded to a 120gb main drive and an 80gb second drive. the other day i started to have a problem where the tivo would lock up...picture would just freeze. if i rebooted, it would work fine for about 10 minutes and then lock again. the third time it went to GSOD and has been stuck on that for days. i've rebooted a few times, and given it hours to try and repair itself, but still get the GSOD.

i opened the box to make sure all cables were tight etc.

also tried to boot with only the main drive connected -- in that case it didn't give me the GSOD, just started looping through "powering up" and "almost there"
(also, if just the slave drive is connected it just sits on "powering up" but i suppose that's to be expected)

are both drives bad? is it worth trying to sort out whether only one is bad (they're both about 3 years old)?
is there any way to save any of the programming?

thanks.