Possible DNS issue in Debian/Lenny?

[Mike Chorak <mikechorak@sbcglobal.net>]

I'm having a rather annoying problem. It seems when I try to navigate to 
www.facebook.com, in either Iceweasel or Epiphany, the browser will 
sometimes hang for upwards of 30 seconds, until it finally navigates to 
the site. After this delay, I can surf the site for maybe a minute or so 
before it hangs again. This problem only occurs in Debian/Lenny, because 
I attempted surfing in Vista with no problems whatsoever. Has anyone had 
any issues like this? I thought maybe avahi could've been causing it but 
I tried disabling the daemon and the problem still remains. Any help 
would be appreciated!