Couple of potential causes gleaned from Help.

Using a link to a program that is not running

Start the program.

Linking to a Dynamic Data Exchange (DDE) topic such as "system" that is not
available

Make sure that you're using the correct DDE topic.


Gord Dibben Excel MVP



On Mon, 18 Apr 2005 16:36:03 -0700, "br" wrote:

I'm working on a spreadsheet where I receive REF errors when opening it on a
Windows XP machine. On a Windows 2000 machince it opens properly. I can't
seem to figure it out.