For an unknown reason, whenever I try to close a workbook that I have
been building, I now get the message, "This workbook is currently
referenced by another workbook and cannot be closed." I don't have any
other workbooks, so I'm not sure what is causing the problem. I may
have done something inadvertantly during development. Does anyone know
how to track this problem or to resolve it?

Thanks,

Terry in Kalamazoo