I have a Konica Minolta Dimage Z10 digital camera. I've used it for almost a year to load photos onto my iBook G4, primarily using iPhoto. Recently, after some incremental upgrades to both OSX (currently on 10.4.2) and iPhoto (5.0.4), the camera doesn't consistently show up on the desktop. For example, last night it showed up immediately, automatically opened iPhoto and everything worked great. I ejected the camera as instructed.
When I attempted to connect it again today, nothing. I tried accessing it through Image Capture -- nothing. I checked the System Profiler -- nothing. I would try it on another one of my Macs, but I'm in the hospital with my wife and newborn son, so that isn't an option. (This happened once before and when I tried the camera on my wife's dual 2.42 G4, it worked immediately.)