At least at http://free-thursday.pieni.net/ikiwiki.cgi the "SSH keys" page shows only the first 139 characters of each SSH key. I'm using iceweasel in 1024x768 resolution and there are not scrollbars visible.
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I have access to the same wiki, and do not see the problem Timo sees. I see 380 chars of the SSH keys, and do have a scrollbar. Weird. --liw