I have a mid-2007 iMac and I'm attempting to connect it to my 2005 model Panasonic plasma TV to mirror my desktop. I'm using a Dynex mini-DVI to s-video adapter and have have not yet been able to view my Mac desktop on my tv. I've tried various methods to get my Mac to recognize the tv, powering both off, one on one off, etc. but no luck so far. I'd appreciate any recommendations. Thanks.