I know this has not been an active thread for a while, but have tried to get help in another thread without any luck.
I use SABznbd; i find my nzb files on nzbs.org and have an astraweb account, but also link to MWeb or WA news server depending on which ISP I am connecting with.
A few weeks ago - after many months of hassle free usage of SABznbd - I started getting incomplete downloads and the files were a couple of hundred days old. Anyway someone said to update SABzndb and the problem went away. Now for the last few days, files that are 400 odd days old are all coming up with missing blocks - a few megs short at most - so basically am wasting gigs and gigs. I also have winrar to repair things, but this does not seem to be working.
I have things set up, but not technically minded, so when all works, life is fine, but when glitches happen, I have limited success in solving them, hence my hopes that someone here will have a user friendly, easy to understand solution