Some WebDAV and/or CIFS clients create special config files in the different directories they visit. One example is Apple's Finder that creates .DS_Store files.
In my special case, I created a space in which I put 4 presentations I recently made using WebDAV:
CPM.pdf Debian for RPM experts.pdf Jabber.pdf ZLM X-Tend Days.pdf
When I checked in the web client afterwards, I noticed not only a .DS_Store file but also
._CPM.pdf ._Debian for RPM experts.pdf ._Jabber.pdf ._ZLM X-Tend Days.pdf
Is it much work to have these files hidden in the web client? I noticed in another post that you already considered filtering out these kinds of files, but could you give us some kind of time frame?
I have raised a JIRA issue for this (http://www.alfresco.org/jira/browse/AWC-499) so you can track it's progress. Unfortunately, at the moment i don't have a time frame for it.
