Sometime last week, I noticed I can no longer see any YouTube or other Flash videos on my N800. I do have OS 2008 on it, and generally it was working great (I have other issues I'll post later). When I go to youtube.com it says I need a newer version of the Flash player. I do have AdBlock installed, but I disabled it for the sites I was having problems with, without any effect.
Is there a setting I might have changed accidentally that would have affected the browser?