MOTUnation.com

Well techlinks guy told me to try "resetting" the digital inputs , this is what he wrote: Have you tried resetting your 828Mkii's ADAT ports? You can reset the 828Mkii's ADAT ports by going to Applications/ Motu Audio Setup, setting the Optical input and output to None then ADAT and then b...

Realy good to see you fixed yours. I would do exactly that except im running on a laptop. I can see that the usb2 bus thingy is sharing irq 16 with 4 or 5 other devices inkluding graphics device so there it probably is.
I have also a techlink with motu..so im waiting to see what thay say.