For a real mess try Firefox 2 and (for irony) go to the accessibility
pagehttp://www.tfl.gov.uk/accessibility/options/877.aspx(and perhaps
others too)

Hit Control+ (increase text size) a few times. How's that for an
unreadable mess?

Well, it worked for me most of the time. Yes, at large fonts some text
is out of the boxes - but that's common problem everywhere on WWW.