just a simple question that has been driving me bonkers for a few hours, but I'm new to MFC and haven't encountered this until today

I've implemented serialization in my current project and set the modify flag appropriately... when I select "New" or "Exit" in my menu the program correctly asks me if I'd like to save if the document has been modified... However, when I click on "Open" it does not

do I need to override my OnFileOpen? or is there another flag i'm missing somewhere?

I can't post the code due to the length and tedium it would be for anyone to parse it, but if there are any general suggestions or places to look for the answer (the MSDN didn't help me) I'd greatly appreciate it

thanks