Don't worry, it will all be sorted out soon. It was probably the weather too.
With Steam you can re-install games at anytime
(if you've bought / loaded a demo version previously).
Trying a DEMO of a game is good too, if one's available. Always check first.
Enjoy Steam - it IS good.
It is also the only way that is safe [esp. w/the 'Doze' registry) to install multiple games / demos without lots of blue screens / crashing etc. Win7 is decent for games anyway, and steam helps keep it that way.
Ask away if you need help/advice - good folks here are normally happy to help. [smile]