I’m using Windows XP today. Man is IE faster on this box, with an equivalent processor, than it is on my Mac OS X boxes. I’ve tried running OmniWeb (no css support to speak of) and OPera on my Mac OS X boxes, but neither is as compatible with the sites I visit as Internet Explorer. Of course, the reason the sites are more compatible with Internet Explorer is because more people use Internet Explorer than any other browser. So the people who design the sites test them against Internet Explorer. We need another browser to get at least 30% market share very badly.