When using 2 news servers, "N" key to read next article doesn't work

I am reading Usenet groups from my ISP (eclipse.co.uk) and Mozilla groups from their own servers (news.mozilla.com). If I want to read articles from one of the Eclipse-hosted groups, I have to doubleclick on each one, rather than being able to just follow threads using "n" key.

RUnning Pan 0.133 on Ubuntu 10.04.2 LTS.

Usability issue - and no docs to speak of.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: pan 0.133-1.1ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-32.62-generic 2.6.32.38+drm33.16
Uname: Linux 2.6.32-32-generic i686
NonfreeKernelModules: wl nvidia
Architecture: i386
Date: Tue Jul 5 18:16:53 2011
InstallationMedia: Ubuntu-Netbook-Remix 9.10 "Karmic Koala" - Release i386 (20091028.4)
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: pan