Hi Renier!
I'm Jen, an independent advisor and a Microsoft user like you. I'd be happy to help you out with this issue.
Try to open the Macro dialog and make sure the "All Open Workbooks" is selected from the Macros in listbox.
I hope this information helps. If you have any questions, please let me know and I'd be glad to assist you further.
Best Regards!
Jen :)