Tracked Changes viewing problem
 

Hello, I'm using Excel 03. I have a spreadsheet that has gone through
several rounds of changes with Highlight Track Changes on. They were never
accepted or rejected, but for some reason I am not able to view them
consistently - the blue tag does not appear and when I select Tools, Track
Changes, Accept/Reject it says there aren't any changes. However in the
process of trying to figure this out I was able to get them to show up, once.
I canceled the Accept/Reject dialog box (with the close button), and I've
not been able to get back to them since. Any ideas? Thanks