An update to the Counter-Strike: Source beta has just been released. Steam will update itself automatically when you restart. Here is a list of the changes:
COUNTER-STRIKE: SOURCE BETA CHANGES / ADDITIONS:
Optimal refresh rate is now autodetected from the list of available modes
Fixed bug where multiple terrorists could purchase C4
Fixed " bad net addr" error when joining a game after running a listen server
Fixed sprays not working correctly
Addressed crash caused by loading incorrect serverbrowser files
Addressed flickering overlay textures on some video cards
Addressed ground texture clipping in de_dust
Limited sprays to 128 by 128 pixels
source:http://www.steampowered.com/index.php?area=<BR>news&id=109305389063658000