@m3xHey again M3x, hope you are well. :)Both of those points are really exciting. I'll happily try the solution, as using the PCI slot for a soundcard does kind of "suck" a little (but not so much!)And that's great about the Juli@ card, too. I'm sure a lot of SAM460 users are happy to have the option of "high end" sound and make use of that unused slot.
http://acube-systems.biz/index.php?page=news&id=115Has the news on the problem. As I guessed (go me) it is a hardware fault, allbeit a small one.I'd check my board, but it means removing it from the case... Thanks m3x, for solving this long running mystery.