In our SharePoint 2007 farm, some of our users are suddenly not able to modify Microsoft Office documents. This is NOT a permissions issue - the users clearly have write access to the folders involved. When they open Office documents, they open read-only. When they try to save Office documents, they get this error: "Documents in this folder are not available. The folder may have been moved or deleted, or network problems may be preventing a connection to the server."
The problem began around February 21 2010 when we installed the latest Windows updates on client PCs. (We are guessing the updates may have triggered the problem.) Out of 1000 users, only 10-12 have this problem, but it seems to be growing slowly (new cases every few days).
It seems like non-MS-Office documents (say, .txt files) are not affected. They are writable.
The users are running a variety of Windows versions and IE versions. They all have Office 2007, and they all used to be able to write Office documents in SharePoint.
Anybody else experiencing this? Any clues appreciated!
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