In Vista, Windows Media Player suddenly started trying to sync to a camera when that was plugged in to USB. The preferred action is to use the "Windows import pictures" feature.
Follow these steps to stop Windows Media Player from trying to synchronize to a camera:
+ Start button
+ Control Panel
+ Hardware and Sound
+ Look under Devices for your device, and choose Import Pictures using Windows
It may be necessary to log off/on for the import feature to activate.