I wonder if I could ask of you learned gents (and possibly ladies) how difficult the upgrade is to do at home? Also, how do I find out what issues have been fixed by the firmware - when I upgrade drivers for my PC cards, there is a sort of running total in a text file - this would be useful to see whether it's worth doing. (I have a 596 at 1.22 and a 565Z3 at 6.0)

Andrew

Main system: 818v3, 861v6, HD621, Oppo 103D, DSP8000PP, DSP7200SE HC, DSP3200, SGR Sub
Family room: HD621, 861v6, DSP5200 L/C/R
Headphones: Schiit Mjolnir v1, Sennheiser HD800; (office) iFi iDSDPro, Focal Elegia