82 votesFrobo commented
I did find a fix for the problem, and I think it's a driver issue. If you disable the asetek pump driver in Device Manager and restart, then enable it again and go to the device driver tab in CAM and hit detect, the device shows up again.
Unfortunately this is a temporary fix, as when I shut down, the problem occurs again. This is, however, a reliable fix. Every time I start up, I go through this process and then it's fixed until I turn the computer off.Frobo commented
I have the same issue but with an x61. It remembers my lighting setting, but it doesn't even show up in device detection...?