Mail Merge Help!

[E55 Max]

Our office PC's have been updated and now we have office 2007, the problem I am having is that we have a mail merge document that auto fills recipients on opening. The document just can't seem to find the data source unless I choose 'remove all data' and the go through the merge manually.
Does anyone have any ideas!
Thanks
Max

[Jinx]

What is the data source? If it's an excel sheet open that first - microsoft office should be able to do the rest (might need to check your security settings first though) .