Do you use syntax like

Workbooks("Myworkbook").Worksheets("Sheet1")

If so, then
Workbooks("Myworkbook") is the cause (assuming you have a sheet1)

Always use the extension and you won't have problems

Workbooks("Myworkbook.xls").Worksheets("Sheet1")

--
Regards,
Tom Ogilvy

Steve wrote in message news:3fd64963$0$1440$afc38c87@...
Hello everyone. Is there any reason why a module will run fine on my
machine, but others who try to run it get a run time error 9 - subscript
out
of range error? Is there a setting that needs to be adjusted on their
machines?

Thanks!

-Steve