Ok, to clearify some things..
Dongle is a USB device simular to a USB storage unit, it recides in your USB port containing the licence number for your software, without this the software does not function.
Hypersonic is neither a GM, nor a XG sound bank, but it is shipped with a GM compatible soundbank, so you will need to configure your sequencer/arranger software to select the right patches. What I did is that I renamed the GM bank to another place, and then I made up a new bank consisting of the sounds I like. But I'm planning to work out a complete set of Tyros compatible banks to use with my styles and omb. I've allready made megavoice compatible patches for guitars, now I'm working on basses. It requires some configuration work if you want this to work with Tyros styles. In OMB you can select GM as the output device, and then you may use the GM soundset in Hypersonic, which is quite good, then you don't need to configure anything.
Doc-Z