That's not a problem with your page but a side effect of the multi-page merging. The screenshots are taken one screen at a time, and then merged together to produce a tall screenshot.
52.
Save testing preferences to presets...
53.
Screen Height
54.
Priority processing for <strong>%(username)s</strong> (%(duration)s for <strong>%(symbol)s%(amount)s</strong> %(currency)s)
55.
Click for full size.
56.
Expires in %(interval)s
57.
The current version 0.4 uses http://api.browsershots.org/xmlrpc/ for the screenshot factory API. You should install a package with "0.4" in the name, or check out the trunk from Subversion.