MSMQ and NAS

I am experimenting with NAS SQL 3.70 on a Windows 2000 Server, in an NT 4.0 Domain with a MSMQ 1.0 server. I do not have any trouble with my Navision client writing a simple message to to queue, however, when I am trying to read the message with NAS, I am running into some security issues. I have granted Everyone full access to the queue, and I have NAS logging on as a Domain Administrator, with no luck.[:(] If anyone has been down this road already and has some pointers I would be most grateful Thanks

Nas will access the navision server with the windows account that the service runs under(and the MSMQ), so try changing the account that the service runs under and also inside Navision setup this windows login and grant it appropriate roles.