ah, never mind then, perhaps ill just wait for thornton to make some more of his magical meshes
Well, the perfect orbit I knew Its just that, I can't continue the mission. Either I spend days with it in 1x, or it eventualy goes into the crazy spinning and solar orbit. This happens either I start the rendezvous or leave the orbit as-is.
Have you tried deleting the launchpad & discarded rocket stages / debris from the .scn files ? Sometimes they cause crashes in some way.
I saw this once with the DGIV, where it kept wanting to spin, even after a killrot, it would then start to spin again in LEO for no apparent reason. I figured it was an issue of trying to use Attitude MFD with UMMUs and the ExtMFD lock feature that does not work so well in that situation, and it just messed things up royally. But you say it is happening on a fresh install which means you have a different cause.
Does it still happen even after going into the in sim scenario editor and killing angular momentum?