I've been using Sabnzbd now for some time and I just love it. I've used it in both Linux, and I'm now testing it in Windows however for the past few months I have been having a huge number of Not Enough Repair block problems.
I download my nzbs from nzbmatrix and I use usenetserver.com to download them.
The nzbs that are giving this error range from ones over 200 days to ones that are just a few hours old.
I will email in an NZB I just had trouble with, I'd love to know what I'm doing wrong.
and keep up the great work!