Imac wont recognise my webcam

Hello

I have a problem with my Imac and web cam

i own the logitec wuick cam pro 4000 so i can do stop motion animation because while its not the cheapest or the most expensive its the best i can afford for what i need as i hate using the DV camera i have

everything was working fine but for some reason the Imac does not recognise the camera anymore i plug it in i use the software that came with the camera to check its working everything seems fine but i open the software i use t capture the pictures and the camera does not appear in the camera selection menu

ive tired my Dv camera and that works fine with the software i had this problem before but it seemed to fix itself however its not fixing itself this time

i am not very experienced with Macs so dont know how to do any of the complicated problem solving

any and all help would be greatly appreciated

Raven

Sorry i posted this in the wrong section could it be moved to the right one please

Are you using maccam? It's a generic 'recognise all' application that supports non-Mac cameras. http://webcam-osx.sourceforge.net/

i have that program should i try uninstalling then reinstalling it?

What version have you? The latest is 0.9.2. I guess a complete uninstall might work, but use a third-party application like CleanApp to get macam preference files etc out of the system.

ok thanks for the suggestion i wil give that a try

Are there any free programs that do the same thing as CleanApp

There's a demo version of CleanApp.
Also:
AppCleaner http://mac-free.com/download/AppCleaner.html:
AppZapper http://mac.softpedia.com/get/System-Utilities/AppZapper.shtml