For some reason, I can't get macros to run properly. I'm using the Excel Assistant add-in, and Excel 2007 has started to give me the error message every time I invoke one of the Assistant functons.

'because of your security settings, macros have been disabled. To run macros you need to reopen this workbook and then choose to enable macros' - which I've done, without effect.

This behavior just started today - although I don't believe I've changed anything that would cause this.

Are there any ideas on how to fix this?

Many thanks,