For a week or so I've been getting irritated every time I tried to use Safari 3.2 on Windows (I use it for testing purposes and each and every time I get sick by its GREYness). It was freezing for 10 seconds or so after startup upon clicking on any menu or trying to enter URL. After searching the Apple support and the rest of the Web with no obvious solution (tried reinstalling, but to no avail), I decided trying to play with the settings (not that there are so many settings to play with).
Turned out it got fed up with the History. Put the history to 1 week back and it started up in a snap.
But still, I wonder, what's so hard for Safari to chew in a bunch of history addresses on a Compaq dx2300, Dual Celeron 1.8GHz, 2GB RAM, that FF2/3, Opera and even IE8 beta 2 could bite off in a split second?!