Hey Man,
I know this might not be what you want to hear, but check yours tracks!
If you remember on my one channel I was having problems with my Phantom Power and it was fixed, then it wasn't, then it was... anyways long story short it was a bad track... I had to resolder it and now I have no problems, couldn't really see it with the naked eye, but at a point my 48V dropped to 5V, bad track.
As far as noise, I was getting a white noise on my channels and it seemed to be that it was grounding issue, which also induced a noisy ground hum. Also is the noise there on dynamic and condenser mics? I only seemed to get it when the phantom was one. Have you grounded the pres and the XLR inputs to the AC ground?
Fear not, I am sure we will all try and troubleshoot with you until it is right. Re the version the one on Peter's site is V14.
Cheers
Matt