Yes I saw this in an older post on the subject, but it doesn't explain why my main computer does this fine with most website. For example I just created shortcuts to Microsoft and Amazon by going to the website and dragging off the address bar to my desktop and there is the microsoft logo and amazon logo. It doesn't work with Netflix, but that may be because their website doesn't provide one for Opera to use.
So although I hear what you are saying, that can't be the end of it, because if it works on one computer it should be able to work on one which is almost identical on the desk next to it!