Ok, this is a very unusual problem and has me stumped.
I have access to several digital cameras. These cameras connect to a computer as removable disk drives (no TWAIN access). I can connect them to Win98, WinME, Win2k just fine, so no problems with the camera hardware. However, I am having trouble connecting them to a WinXP computer.
When I connect the device, WinXP notifies me that new hardware is found, and I successfully install the WinXP-specific drivers for that device. The camera then appears in the My Computer window as a removable disk (E:)... no problems. The Device Manager shows the camera as a valid disk device under USB Controllers. Everything seems fine.
When I double click on the Removable Disk, it opens up to a blank window (0 items). There ARE files on that camera (on the Compactflash card), and I can see them on other computers, but not on WinXP. It actually works fine on another WinXP computer; it's just the ONE computer that's giving me fits.
The disk management utility sees the c: drive and the cd-rom drive media, but does not list the removable disk... even though I can see the disk icon in the My Comptuer window. I can double click the removable disk in the My Computer window, but it opens to a completely empty window... even though the WinXP Logo Certified drivers for it are installed properly and reflected as healthy in the Device Manager.
Anyone see anything like this before?