>Upgrade the other node ;)
>
>Is the other node Debian? If so, I'd build slony-I 1.2.21 from sources
>on the other one. 1.2.15 has various bugs as compared to 1.2.21.

Well, if so, I should probably try that. Yes, the other system is
running Debian Lenny and I installed Slony-I with aptitude, but I'll
uninstall Slony on the Debian system and try to get release 1.2-21
installed. Thanks for your help!

-- 
Ulas Albayrak
ulas.albayrak at gmail.com