Just a stupid question did you test it with other cables?
Did you have update on windows? Or other software?
Yes. Tested with another cable. Yes Windows did updates. Not other software.
@Scottulus. I didn't look in device manager.
@fydlsys- kak funny
As I said It's happened before. When my mate gets back from the UK I'll try in his system etc.
Toslink is not shabby, just a little "looser"
Nonetheless Rodney's Eximus is tempting though I would only use the DAC (My Modwright pre has a pretty sweet headphone amp- for the twice a year I use them).