I'm having problems getting memory allocation to work between CV-22 and my TE4500F. I keep getting "Communication failed Error 4". From the manual I see the error text says "Windows resource", but I don't know what this really means, or how to fix it. I have some form of successful connection to the TE4500F, because I can send PLUs and do a binary send or receive and a Receive from the ECR Setup tab under the customer setup (but I can't do a Send as that also gives Error 4). Can anyone give any pointers as to what I haven't set up correctly? It seems strange that I have some comms, but can't get this aspect to work.