Crocklobster,

Which MkII do you have? Is it one of the original Empeg branded devices? If so, the problem is that you don't have enough memory. Some (or all) of the original Empeg branded MkIIs shipped with 12MBs of RAM as opposed to the Rio branded models that came with 16MBs.

The bad news is that there isn't a lot you can do. I've tried reducing the number of buffer space required by the player to their absolute minimum but no joy. I'd be interested to hear if you manage to get it working.. :)