Logitech QuickCam Communicate STX Personal Web Camera "stop camera used app" Questions

...camera, need to stop app, hit "reconnect" to use cam again. Can't find%appname% anywhere. Have to reboot system to get cam to work again, then problem starts over. Thanks for your help. Al Removing ...

...camera and i installed everything again, but still doesnt work, even when i go to msn and try to change the settings of video and audio it wont let me go.. please give me any solutions, what should i ...