The testing that I am doing now is with the VFP 6 base objects.
There is no code at all in the object or anywhere else in the form that affects the object.
There is no DBC - only a free table.
The two computers are a new Dell with XP PRO and a three year old Dell with W98.
The customer who first noticed that the scrolling stopped working when we converted over from VFP 5-> 6 is using a HP with W95.
BTW - to make sure that it wasn't related to the conversion I created a new form with the VFP 6 controls from scratch. It is not part of a project, etc.

>What code, if any, do you have hooked into the control's events? Any code in mouse-related events? Any trigger etc. on the underlying alias in a DBC?
>
>Have you tested on computers that are significantly different? (i.e. not two identical Dell workstations)
>
>Just throwing out SWAGs hoping that something sticks... ;-)