New instance of excel.exe not firing newWorkbook event
 

I'm having some trouble with consistently getting Excel to fire the
newWorkbook event when I open Excel. It seems that on some computers,
opening excel (which opens book1.xls by default) invokes the
newWorkbook event while on others, it does not. This doesn't appear to
be an issue of version as I have two workstations with the same version
of excel (11.6560.6568) sp2 with one firing the newWorkbook event when
I open Excel and one not.

Any thoughts on why this is happening?

Thanks in advance,
Jeff