Ubuntu 12.04 beta updated: Gwibber display of Twitter is graphically displaced to the right

Ubuntu 12.04 beta2 updated to date. Using Gwibber to view and use Twitter account, then the display within the gwibber window is displaced to the right in most window width sizes, part of the content cannot be seen. In a special case of windows width size, if the gwibber window is only just wide enough for the content, then th econtent can be seen ok. If the window width is increased then the content moves to the right by a greater amount and the end of each line is lost.
Attached images.
Note that when changes of window width are made than there is often a long delay (40 seconds etc) before the window contents are re positioned in the window.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gwibber 3.4.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
ApportVersion: 2.0.1-0ubuntu3
Architecture: i386
Date: Mon Apr 16 10:03:38 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120327.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: gwibber
UpgradeStatus: No upgrade log present (probably fresh install)