This will happen if worksheet events are left dis-abled.

Many Event macros disable events, do some processing, and then re-enable
them before exiting. If the routine exits prematurally, the dis-able may be
left in effect.
--
Gary's Student


"Jeanne Conroy" wrote:

Hi Group:

I created a macro to pop up a message box under certain conditions using the
Workbook_Change property of a worksheet. However sometimes it seems to stop
working. What could cause this?

JJ