Sorry estel, missed your latest reply.

I don't mind pushing it to -devel, if I have/get rights to do so, but I need a little more input from those who want it before I do. Does reverting 800x480 to 640x480 in config solve more problems than it creates for most users with regards to de-sync at borders?

I know 800x480 isn't a standard resolution for DOS games (if at all supported), so was this only purely a change made for supporting windows. If reverting this reduces the de-sync of mouse in the majority of cases, I'll try pushing a build with the defaults set to 640x480.

I still would like to be able to solve the initial offset fault as some stage, when I can find time.