Have just installed my new Iscan & Panny HD7. I'm getting pretty good results but some more tweaking is required. However, having never used optical cable before, I can't figure out how to connect my Sky+ box digital audio output to the Iscan. I have been supplied with a Toslink cable which looks as though it should plug into the Iscan, but won't. I'm a bit reluctant to force it in, but is that what is required? At the Sky+ end the socket seems to be different, ie 6mm square with a pull out cover. Have I been supplied with the wrong cable? Any help will be gratefully received as I need to use the Iscan's audio synch capability.