I dont get the difference. when I tested it, pre-nas, with a similar setup but on a computer, it worked fine and warned me of read only. The installations were the same, with each computer its own standalone installation. I took the files from one computer with Lacerte and put them in a shared folder on the computer and accessed it from two different computers via the network share, and got the read only warning. The programs were not set up as servers, just different standalone installations, accessing the same files on a shared network drive. yet the same lacerte installations on two different computers with the files on nas shared drive and I dont get it. I dont see the difference, considering it is the same process with nothing functioning as a lacerte server.