Has this happened to you? This started happening for me after the Oct. 3rd Update.
Everytime I try to load Half-Life, it just freezes on that screen where Gordon is holding the poorly construchted shotgun, with no menu items. Also when this happens i cannot:
Alt-Tab
Ctrl-Esc
nor Ctrl-Alt-Delete
Steam/Halflife gets the award for the first program to crash my XP SP2!
I've searched around on Steampowered.com, and google, with no help yet...