After one month with Mac/OS X, this is my biggest gripe with the system. Even after upgrading to Tiger, resizing windows is still slower than any old crappy PC running Windows. I understand that this was even worse before (read some reviews saying it was "unusable" in 10.0.0), but still, even resizing an empty window is not "realtime", like it is Windows XP. And sometimes it can be painfully laggy (like webpages with a lot of pictures). So my question is, how has this after 4 years still not been fixed? Is there some fundemantal architectural thing with OS X? I mean moving windows around is über-fast (in fact, faster than Windows), scrolling is fast, Exposé is fast. Why is it so hard to resize windows fast???