When I'm using forum icon with long forum description, subsilver template generates a "broken" forumlist style (not so sure which term to use). This is viewed under Mozilla 3.5.2:

!http://i29.tinypic.com/9tzrpk.jpg

A fix has been proposed in the thread (not by me)

http://www.phpbb.com/community/viewtopic.php?f=74&t=1758335

I'm not sure whether the "bug" affects other page forumlist also.