"connecting..." page when adding tracks to the basket

Sometimes, when I try to add tracks to the basket in the music store, and/or when I try to check out, Rhythmbox displays a page saying "Connecting to the Ubuntu One Music Store", and never moves on.

From the debug log output it seems that this is caused by rhythmbox not beeing able to communicate with the com.ubuntone.Authentication D-bus interface, probably caused by reconnects in syncdaemon.

Syncdaemon appears to take down the D-bus interfaces each time it has to reconnect to the UbuntuOne services. This seems to not be handled well by the rhythmbox plugin.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: libubuntuone-1.0-1 0.3.1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
Architecture: amd64
Date: Tue Apr 27 13:57:10 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: libubuntuone