Recently purchased a Canon a 590. Downloaded test pics. to computer, no problem.Then had to do a system recovery, I think it was a corrupt file. I believe I got everything back, but now when I try to download pics. on the computer, I get a pop-up that says; camera is not connected. Tried different ports, got latest updates. Am also having the same problem ( no camera detected) with my webcam installation.My printer is fine, it was able to detect that. I use Norten and Fix-it Utilities Pro, didn't find anything there.