I hear ya on the programming issues - hopefully .Net will make our dll-troubles a thing of the past (well, one can only hope). Maybe in five years time..? ;) Hmm...both machines have fresh installs, so yeah, that might be worth looking into. I upgraded from Vue3 and I don't have Mover. I think I'll also try distributing the port numbers differently, you never know...perhaps two of them use the same port. Surely that shouldn't be an issue??