RC2 is by far less stable for me, too... what's up, Microsoft? This should be near RTM "quality"! From what I know, by the way, RTM will be bumbed up to 6000 so it looks better. And the version texts on all these are kinda funny, e.g. 5782 was listed as 'RC1' in the text in the bottom-right area of the desktop, and the EULA still says RC1, yet this says RTM.