xfce-taskbar button text overlaid

[cathayan]

debian unstable, upgrade xfce4 to 4.2.3-1 today, when i restart the
xfce4, the text  on the taskbar buttons overlaid to its right, see the
attachment picture.

is there any new settings for this? or only a debian packages' problem?

thanks.
--
cathayan at gmail.com
http://blog.cathayan.org
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