I see a few threads out there on this topic but none with a resolution. Here is the sequence of events:
1) A Word 2003 document was opened from Sharepoint (WSS 3.0) and after a few inserts of screenshots within the document we looked at the print preview mode where we received an error "There is not enough memory or disk space to display or print the picture", and after a certain point in the document all of the images are wiped out. This behavior is received consistently across multiple documents and different workstations.
2) After investigating the health of the WSS server, we made the decision to move to a new server, backed up and restored the sharepoint site to a clean WSS installation on a new more robust server. All was ok... for awhile.
3) Now we are seeing the same problem as in #1 with a different set of documents within the same Sharepoint site (in the new location)