Your dealer should not be using products that he does not know. Sorry to sound harsh here. There is no reason that he can not call Tech support and get help with this very basic issue. Netstreams has an outstanding "dealer" tech support staff willing and able to solve this issue for you.
Also you as the consumer (yes, I know you guys are do it yourselfers) should not be hooking anything up to the smm100 or playing around with any portion of Netstreams. This is not meant to be a consumer system. What you are seeing on the Moniter means in reality very little and your dealer would need to know where to go in the setup to view what is going on with the smm100. There is training for this and again very basic.
If he can't solve this very basic issue you might be in store for a not so great experience. You , as a consumer, should not have to ever go on the net and try to solve your own issues with this product.
As an example, when I sell a smm100 with server, I go through the music collection and go through the music folders, Ipod music etc and spend time making sure that the folder, album jpg, etc is set up correctly. This is where the extra value comes in and why should you have to do this anyway??? I do not sell a Digilinx and have anyone listen to mp3's. All music has to be converted to .wav for my clientele. Yes, with this system you CAN hear the difference with good speakers.
Again, without seeing your music folders it is hard to say where your problem lies but your dealer "should" be able to assist you and at the least call tech support for help. This is a pretty basic issue.http://www.wegotserved.co.uk/
I guess that is correct if it takes you to the site (I don't memorize these sites) you guys are tough.......
All the best,