I have been working with MS on this issue for some time and the exact
cause of the issue is still not clear.
When saving document to the portal it appears that the IE cache is
utilized. On occasion, no real pattern of frequency, the attributes of
a document being saved are truncated. In our case the users simply were
not allowed to save the document. They were forced to email it to
themselves close Word and reopen it from Outlook.
In our case we are using a macro to perform the save, thus the macro was
rewritten to save the document first to the hard drive then to the
portal, thus bypassing the IE cache.....I am no programmer but that is
what I understand.
MS is working on getting a clearer picture of the issue, but if you have
ever experienced the inability to save a document to the portal you may
have been suffering from the same issue.
One way to force the issue to occur is to make your IE temp files size
1MB (1MB is a silly cache size of course), browse the internet for a
while, then try to save a document the portal. It may not happen right
away, but if you continue to modify and save the document to the portal
you should get hit with the issue.