My USB interface camera seems to lock up the application occasionally. What is wrong?
The USB protocol is designed to provide completely error-free communications bewteen the computer and the peripheral (camera). Unfortunately this does not account for peripherals that do not respond correctly, whether due to bad drivers sending the wrong message, or incorrect firmware in the peripheral itself. Normally such problems would be detected by an “I/O timeout”, where the operating system gives up after trying for a time; unfortunately this basic precaution was not included in Windows. As a result, if this type of error occurs the application will lock up. If this happens, briefly unplug the USB cable to unlock the application. You should also contact the camera vendor for assistance in resolving the problem.
