And can't remember what it was set at! If I set the picture up using the THX optimiser does it matter if I change the contrast on the projector as long as the picture is ok? Currently using Theatretek equiped HTPC and generally use the picture controls in Theatertek to make adjustments. Also, what is the worst that can happen if I try and re-converge the Barco myself (BG808)? I am noticing some blue edges on white lines and mouse pointers.