John,
Somewhere along the lines in VFP5 they hosed the increment speed. In VFP3 it was sometimes too fast, but now it's ridiculously slow. Unless you wiggle the mouse, mouse events make it go at an acceptable rate, but it's unsat to tell your users to wiggle their mice... *g*
>Do you by chance have code in the InteractiveChange() Method - or some other method that could be calling the Refresh() of the form or executing lots of code????