Accessing CIFS Share on NetApp Filer gives Error -36
There seem to be an issue with Snow Leopard accessing a CIFS Share on a Filer. Especially copying of Files ends up with the following Error:
The Finder can’t complete the operation because some data in “<filename>” can’t be read or written.
(Error code -36)

The files on destination do exists afterwards. They also seem to be correct. Just the Error message shows up in general.
I also realized that this happens only on certain users. So I will investigate more about the differences.