The horizontal lines, are how passive systems work. Every other line is viewable by one eye or the other, so you end up with horizontal spaces. Have you tried to see if Tridef works? I have a feeling the problem is not the monitor, but the software/codex.
TriDef is not working well either - even the menu controls are the same
kind of weird.
Google Earth is just normal 2D when I launch with TriDef.
Trying to watch the Puss in Boots Demo with Tridef doesn't work either.
I don't have anything else I can test TriDef with.