Missing and phantom cites

Mac OS 10.4.11 (Intel)

MS Word 2008

Endnote X2.0.1

I started using CWYW last night. Got through 22 citations.

Shut down computer for the night.

Returned to the document today.

Over half the citations are missing from the footnotes and the bibliography.

And when I try to add *new* citations, Endnote appears to insert field, but the field is one character long and empty.

W, as the kids write, TF.

Please help!