4.0 Macro in Excel 2003

Hello,

I have a workbook that on opening I see the following message.

This workbook contains one or more Microsoft Excel 4.0 macros.

What's confusing is that I never downloaded any 4.0 macros. The ones that I have were either recorded or provided by this forum.

I am trying to find this macro and delete it but I can't locate any 4.0 macros. I even copied all worksheets to a new workbook and when I go under Tools/Macro there are 0 displayed. I even launched the VB Editor and can't find any.

It's not causing any problems even when I select Yes to enable these macros but it may cause some individuals to not want to open it which is a problem.

I've also run Norton Antivirus and none were found. Additionally, if I open other workbooks this message is not displayed.

Could someone have a look at the attached and see if they can identify what macro the message is referring to?

Thanks and regards,
Chris