Trigger macro when ActiveX scroll bar control changes

The scroll bar is linked to a cell, so my first tries to get it to trigger the macro have been using

Please Login or Register  to view this content.

to check for a change in the linked cell. But this doesn't seem to trigger the macro. (The code above works perfectly in a simple worksheet with no ActiveX control, where I simply type a value into the target cell and press enter.)

Can anyone suggest a way to detect a change in the ActiveX control which I can use to trigger the macro?

Thanks for advice

That's brilliant. Thanks very much. I now have the trigger working.