Name Conflict during Save 2007

While I update a well working project from Excel 2003 to 2007, one piece of code that is really troubling is me, is a save method.

vb Code:

Application.DisplayAlerts = False
Workbooks(splicedName).Save
Workbooks(splicedName).Close (False)
Application.DisplayAlerts = True

In 2003, this work fine, but in 2007, I get two name conflicts "wc13" and "wc15" that the user must click OK on to rename them. Can anyone explain these errors, or how to just get a default OK (though displayalerts worked, but guess not).

Thanks, and sorry if this has been asked before.

Actually, think I may have fixed this error.. Before I was using a .xls (2003 style), which I assume was running as a conversion for 2007. Saved it as an .xlsm and all seems to be working well.

Still wondering why this error appears?