scrolling and mouse hook

[E]

I'm running an Access 200 application that consists of a main form with
several subforms connected by master child links. I want to disable the
sroll button on the mouse so when useres activate it the form won't scroll
through records. I found and implemented mousehook which works great on the
main (master) form but if you are in a control (text box) on one of the
subforms the scroll button still works and the records scroll. I've tried
using mousehook on the subforms (Load, and GotFocus events). Do I need to
use global mousehook or is there a better event to put the code in a subform.

Thanks for your help in advance,

E