Cactus on 01 May 2010
I used to have a lot of trouble when Steam first launched, but nothing recently. Most of my problems were solved back then by reinstalling everything, so maybe that should be your first course of action.
Their help center is a pile of crap, though, so get ready to be infuirited by some guy who will try to convince you that every problem is due to your computer and not Steam itself.
