So here's what you do:
- Download the Skype special version 6.1.999.130
- Completely uninstall your present version - I used Wise Program Uninstaller.
- Once your present version is uninstalled, install the special version
That's it - simple. As I said earlier, I have been battling for months but this special version seems to have done the trick - for me anyway, although there are a few comments that say the procedure did not work for them.
BTW I'm using a Lenovo G550 laptop with built in webcam.