Entering a category with a very long name completely breaks the layout

• XE 1.9 SNAPSHOT 17115 + IE6 on Win XP
• Create a blog category with a really long name (more than 100 characters)
• Save the page
• Create a new blog article
• The layout is completely broken (the IE6 screenshot was taken on a 1024px-wide screen)
• It doesn't look very good either in FF3

Suggested solutions:

• Forbid long category names?
• Truncate long category names on display?
• Change the CSS so that it doesn't break with long category names?