I'm finding that Blazer 3.0 doesn't always work as expected with my web pages and I'm trying to find out what to avoid. What have you folks noticed about what it can and can't do well?

My big problem right now is that my CSS-built "buttons" using javascript onClick handlers don't work at all. Tapping them doesn't do a thing. I can't find any Javascript preferences in the Blazer prefs, but it's acting like Javascript is turned off. Is it even configurable?