[mclingo]

well thats very interesting, my TV was causing that, tried several MADVR reinstalls, drivers reinstalled and rendering swap changed nothing, did a cold boot of my TV, all back to normal, wouldnt have thought the TV iself could caused such erratic and horrific behavour in MADVR alone - normal rendering with madvr turn off was fine.

All kinds of weird but i think that sums up my system, i'm always having these minor gremlins, I live right behind a graveyard though - there are 100 year old dead people less than 50 yards from my HTPC !

Ghosts in the machine.