I have an Add-In for Excel 2007 (can't post the code here unfortunately) and in some instances, when the user makes a certain change within the Add-In then closes Excel 2007, they are prompted to enter the password for the VB code within the Add-In. The password prompt dialog can be closed by killing it in the Task Manager but we'd still like to get to the bottom of what's causing this issue so that we can save our users from the annoyance. The information I've found online from Microsoft references that Google Desktop or the Google Toolbar may interfere with this but we have tested on several machines with both IE6 and IE7 without anything Google-related and still receive the prompts in Excel. This ONLY happens when we make the change noted above while in Excel. Any suggestions are welcome... The writer of the code knew more about this than I do and I'm a total VB beginner so no explanation is too simple.

Thanks in advance for any and all help!