Last night I tried out lower resolutions from the quadscan – and they still appear to have the noise in the image. The satellite signal doesn’t seem to have the same issue, and its running as a VGA pass-through via the quadscan – so it shouldn’t be a cable problem. However, the satellite signal has enough MPEG artifacting that the effect might be there and being hidden. I’ll have to try a PC plugged in to see if I have similar problems.
At simply line doubled, I have very clear scan lines. I’m not sure if I’m going to change the resolution I’m running DVDs at yet (currently line-tripled), more tinkering is required. I still need to tackle reducing my use of electronic convergence as well. I did discover than the Ampro supports left and right blanking — I had somehow convinced myself that it didn’t. I can use this to mitigate the problems with the cheapy transcoder I have that introduces a line on the left side of the image on some HDTV feeds.