I've tried 3 different bar code scanners. With each one, I can scan one or two bar codes, then it quits scanning. I exit the application, go to the camera application and I get a "camera failed" warning message. Sometimes, my phone also freezes and won't do anything for a couple of minutes, and I've seen a couple of errors with the "Force Close" option.
The Bar Code Scanner works perfectly on the Droid X2; why shouldn't I be able to use it on the Fascinate? Same operating system, right?