I think i had the same problem just a few minutes ago.
Connections freeze and some time later i get error (memory?) messages from alt.binz.
I did try to locate the problem, and i think i know the problem now. (
)
It seems that if you load the que with more then 50GB of files you get this problem.
When i removed a dvd, the que droped from 52gb to 49gb and now all is running fine again.
Had the problem with 0.27.2 and 0.28.1.
Also when the que is over 50 gb you see the filesize dropping to fast (from the files) before the freeze...