If you know where the link is, simply copy and paste special value over it, to make it a hard number. Or, you can enter a formula into that cell that refers to a cell or range of cells within that same workbook.
If you don't know where the links are, here are a few tips to locate them, repeated from the many previous posts on this board regarding the topic of phantom links:
1. Go to Insert>Name>Define and make sure you do not have any named ranges refering to an outside Workbook.
2. Go to Edit>Links and try to use the "Change Source" button to refer your link back to the your open workbook. In other words try and change the link so it refers to itself.
3. Open the a new workbook and create a link to it and Save. Now go to Edit>Links and use the "Change Source" to refer the link to the new Workbook. Save again and then delete the link you created.
One neat tip posted by a user whose name I cannot remember, is to do an Edit Find search for *=*[* specifying Formulas in the Look in field.
Again, credit goes to the posters on this board for these ideas, and I bet there are some other clever tricks out there for this links issue.
Also, see this link to Microsoft about links:
http://support.microsoft.com/suppor... links&rnk=1&src=DHCS_MSPSS_gn_SRCH&SPR=XLW97
Good luck.