Actually, replacing all of the capacitors in the power supply shouldn't be necessary as it's probably only one or two on one of the output rails (the +5 volt seems to be the most likely). The trick is to educate yourself about how to spot the ones that have developed problems and leaked or bulged. Look at the picture steve614 posted in this thread http://www.tivocommunity.com/tivo-vb/showthread.php?t=479176 to see how subtle the difference in appearance can be, and go read the wikipedia article on "capacitor plague" and then check out badcaps.net Once you spot the ones gone bad, assuming one or more has, it's a matter of getting the right replacements, unsoldering the bad ones and soldering in the new ones, being careful to observe proper polarity. Run the manufacturer's diagnostic long test on your TiVo's hard drive and while you've got the TiVo opened (and unplugged!!!), examine the power supply capacitors. You can't be sure ahead of time if a problem is the power supply or the drive or what.