Error 1004 using sheet's Workbook_Open()

[James Snyder]

This one is hopefully a simple answer from an expert. I used a previous program as a template for building a new one, but run into a 1004 error on launch. Don't spend mush time on this as I am sure I will figure it out quickly even without help. Upon launching, I get this error:
09.10.2013-10.08.11 - Bermex's library
Using the Debug button gets me here to the event handler:
09.10.2013-10.13.26 - Bermex's library
All this seems like simple code, but this is the first time I have used an existing program as a template, and I am reasonably sure that it is the source of the error. Now I need to figure out why and fix it. Is there a setting to check for whether macros are enabled?

 

[Norie]

Where is the sub Main located?

What level is macro security at?

PS Please, no pictures.

 

[James Snyder]

The sub Main is located in a standard module. Where do I look for macro security?

 

[Norie]

File>Options>Trust Center>Trust Center Settings...

 

[James Snyder]

"Enable all macros (Not recommended; potentially dangerous code can run)"