Lag?

[Cujo]

type net_graph 3 in console that will give you your Loss and Choke..once you got the numbers read below..

There are three numbers in that which are important:
Ping: This is how long it takes for packets to travel between you and the server. If this bounces around wildly, there's a connection problem somewhere. If you play on wireless, make sure you turn off the Windows Wireless Zero Config service before playing, as that will cause lag once per minute. Otherwise, lag spikes are likely a bad hop in your connection to the server, and the only hope to fix that is to call your ISP and ask them to try to resolve it.
Choke and Loss: Loss is packets you send not making it to the server's CS:S program. Usually this is caused by the server not having enoguh power for the map and number of players currently connected. Nothing you can really do about this, but any loss will cause problems. Choke is packets getting to their destination, but not getting there in a timely manner. There are a lot of possible causes for this, and typically the only way to fix them (without spending a lot of money in some cases) is to adjust you "rate", "cl_cmdrate", and "cl_updaterate" in the CS:S console. These are the commands that determine how many times per second your computer and the server communicate, and how big of a packet can be sent between them, so turning them down will decrease lag spikes, but increase overall lag.

One other thing to try, particularly if you do not have an integrated graphics chip, is to check the option to force the game to pre-load all textures when the map loads

http://au.answers.yahoo.com/question...5143614AAg2Ljm