My Logitech webcam won't work on Win7?

I have the best and most expencive webcam from Logitech and I am so annoyed at the moment. It just won’t work with Windows 7 RTM and it seems as if Logitech either are extremely slow, uninterested or simply won’t fix this issue. As far as I know there are many out there with the same problem. Anyone had this issue and also managed to solve it? I just don’t want to go out buy a new webcam simply because Logitech won’t get their head our of their ”#¤%”#!