Do you experience problems during downloading?
Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
We will probably ask you to do a test using only basic settings.
Do you experience problems during repair or unpacking?
Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
I've been unable to get SABnzbd to run at startup since upgrading to Ubuntu 11.04 (minimal install from scratch - not an upgrade). I've added my username to the /etc/default/sabnzbdplus file and I can start it without issue after logging in. When I check the boot log it says that it started successfully: