New answers tagged wss-3.0
for checking, if a file name is valid in SharePoint, you also must prevent consecutive dots in the filename and a dot at the beginning or at the end of a filename. Please see also here http://support.microsoft.com/kb/905231/en-us (there is also the plus sign "+" and a starting "_" mentioned as forbidden, but that works for SharePoint file names. These are ...
BTW, you haven't closed the FieldRef tag.
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