I think another thing I really hate about C# documentation is that it's merged with docs for other languages like VB.NET. It's a small thing but when I need to do something, I really don't want to be wasting time constantly filtering through stuff I don't need.
Thanks Rexxar - you've made my life easier. For some reason I've never noticed it before. Maybe it's because I use Firefox and the filter button looks really small on it.