We've had Tivo for 2 years. The other day I unplugged the power strip my Tivo/tv/vcr are plugged into so I could dust behind the TV, and now it says it can't find my wireless network adapter. I've tried plugging the adapter into both USB ports in the back -- the light on the adapter comes on, but Tivo still can't find it. Would it give me the same message if there was a problem with my network? I have no way to test the adapter other than with the Tivo. Any suggestions on how to fix the problem?