I agree, I also see a difference. I tested Firefox 1.0.4 and I.E. SP1 (on XP PRO) and I.E. SP2 (on XP Media Center Edition) and advantage Firefox. I use tweak programs for I.E. that I got from www.speedguide.net and a tweak program for Firefox that I got from http://www.totalidea.com/freestuff4.htm. Web-browsing is much quicker with Firefox as well as internet downloads.