We purchased a MacMini with Lion Server to be a file server in a small office. There is one other Mac and 7 Win computers in the environment. The iMac will connect to the server just fine, can open files, copy, and delete files. The Win XP computers can see the share, copy files to it, copy files from it, but cannot open the file on the server stating we didn't have permission to open the file. I don't understand why I have permission to read and write but not open the file from the server. Any ideas? Thanks