Circular Reference

I have a workbook that has developed a circular reference that I cannot track down. I keep getting a circular reference window telling me to click on the view, toolbars link. In other workbooks I have closed the popup, clicked on the View, Toolbars link and followed the link to the problem but in this case there is no circular reference display. I have run across this before but have always seen a window that I can use to trace the source. Without a circular reference window to tell me where the problem is I am stuck. Any ideas?


JIm O