Hi Mark - can you confirm you have tried the fix that Spiro suggested to fix this?
It might not work as there seem to be a number of circumstances that cause this problem to happen. And therefore a number of different fixes.
I can confirm this worked for me - I found two different 'cameras' on the drop down list and found a program that used the same camera but with a different name. As soon as I uninstalled this program there was only one default camera showing and this fixed the problem for me.
Copied from Spiro's original entry -
IF ITS GIVING YOU A HARDWARE ACCESS ERROR MESSAGE, THAT MEANS THERE IS ANOTHER PROGRAM WHICH IS CONFLICTING WITH YOU CAMERA. IF YOU LOOK AT THE CAMERA OPTIONS IN THE FACEBOOK SETTING, THERE SHOULD ONLY BE THE ONE OPTION FOR YOUR WEB CAM. IF A DIFFERENT CAMERA NAME IS SHOWN, THIS MEANS IT IS CONFLICTING WITH YOUR WEB CAM. YOU MUST UNINSTALL THE CONFLICTING PROGRAM SUCH AS COREL VIDEO MAKER AND SUCH, RESTART YOUR COMPUTER AND YOUR PROBLEM SHOULD GO AWAY.
I HAD THE SAME PROBLEM WITH MY WEBCAM, AND AS SOON AS I UNINSTALLED THE CONFLICTING PROGRAM, MY WEBCAM ON MESSENGER BEGAN WORKING AGAIN.
THIS SHOULD FIX YOUR PROBLEM.
SPIRO
