Mike,
I bought the Aitech item you mentioned; What a cool product! It actually solved another video out problem I had with another computer, and I at first has hailed it as the fix (Saturday night) to my wobbly graphics problem on the afore mentioned plasma screen. I hooked everything up, and the graphics were rock solid. During the course of the night, I decided to try to disconnect another new product I broght in, (at the recomendation of Bevis) for a product that radio shack makes to lift the ground loop hum. I did this after reminding myself of my own montra, " Don't make more than one change at a time when trying something new". I have an intermitant problem with ground loop hum at this bar also, so I thought I'd give it a try. Back to my point, now. When I tried to diconnect the ground loop isolator, the wobbly graphics problem returned! So as cool as the Aitech product is, it wasn't the actual remedy of my problem. It solved the video out problem I had with my Shuttle system so I'm still glad you suggested it. So the moral of the story, if you a battling a gorund loop hum problem, a video out problem at the same time, they may be related. This is the first time I have ever had this problem on my system with any tv in any Bar, and I tried every solution I have ever deployed to fix it. Thanks to the great folks in this forum that take the time to contribute, another KJ host problem bites the dust. Thanks a million to everyone who helps contribute to my solution. The MTU Forum isthe best!
