Yeah, give laptops a good cleanout every couple of years even if you're a non-smoking obsessive clean freak. My T42 started acting weird a while back and opened it up...numerous odd places clogged with lint, dust and what I assume is cat hair. Worked fine after degunking.
So I checked the T41, and it was just a dead power adapter. After making a new one from a spare DC-DC converter, the laptop itself still seems to work. Cleaning it up might be a next step. :)
