Star, care to elaborate on corruption of X1. I was going to post that exact question, but came across this first, I have 8.5.3 Prodx64, X1d Expandedx64, all on same machine, and was going to put X2 right along with them. Now, a little worried, because X1 is stablw as hell, and has been since d! Looks like I need to spend a few hours going through posts, thanks for heads up!