Any idea what's going on with my quotes and signatures?

[Steeler Nation]

Since I bumped up to RC4, this is what my quotes and signature sections look like. Any idea what's going on and how to fix it?

http://www.steelernation.com/forums/showthread.php?1091-Big-site-upgrade&p=25149&viewfull=1#post25149

[Lynne]

You got rid of the margin-left property for ".postbitlegacy .postbody, .eventbit .eventdetails .eventbody" (You can tell by comparing the css from a default page to your page.)