Thanks Ron – I think I’ve found the problem.
It seems some of my .m4a files are corrupted – when they are streamed to the Soundbridge it crashes and reboots. The files won’t play properly in Itunes either, they play for 3 or 4 seconds and then Itunes skips to the next track.
These tracks were bought from Itunes and then I converted them to m4a files (for my personal use only) using myFairTunes6 which looked like a great piece of software, but unfortunately the files it creates cause this problem.
It’s a bit extreme for the Soundbridge to reboot – will add a post on the Roku forums as well.
Thanks for your help – and for a great piece of software!! 😀