Word occasionally "not responding" when editing document on SharePoint server

Hi,

I originally posted this question in the Office 2010/Word forum but was asked to move it here as it was more likely that the issue encountered was a SharePoint problem. Here is the question, reproduced with a small edit to reflect new information:

A couple of our users have reported that Word occasionally goes into a "not responding" state and has to be terminated and restarted. I have seen other threads discussing this issue but all those conversations involved Word freezing all the time, not just occasionally. The worst-affected user has one or two incidents a day, the others much less frequently. When Word hangs, the following shows up in the event viewer:

Faulting application name: WINWORD.EXE, version: 14.0.6024.1000, time stamp: 0x4d83e2f6

Faulting module name: MSVCR90.dll, version: 9.0.30729.4940, time stamp: 0x4ca2e32e

Exception code: 0xc0000417

Fault offset: 0x00000000000552c0

Faulting process id: 0x18a4

Faulting application start time: 0x01d17aaf33a62756

Faulting application path: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE

Faulting module path: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll

This sometimes occurs while the user is typing, rather than when the document is being saved or opened. The document in question is on a sharepoint foundation 2007 server, accessed by direct path (i.e. \\servername\sitename\libraryname\foldername\documentname.docx

Has anyone come across this situation before, and is there any known fix?

Thanks in advance,

Tony Spratt.