Has anyone installed it? I installed it and I am having problems with the “Open in New Window Command” in Internet Explorer. It was working fine before SP1. I guess I have to wait till a fix is out. There are quite a few issues with this ‘Open InNew Window’ command prior to SP1, though I never came about it.
According to Steve Gibson (grc.com), network admins better install SP1 because of a major security flaw that Microsoft has been hush hush about.