Why does it always say NO CEL Environment Set Up every time I click on the PSCLIENT?

I don\'t know what this means.... Also, the Initializing World Process goes through in about 2 minutes every time. But the game usually lags up in about 1 or 2 minutes, and so I wait for a while and then just exit.... One time I didnt get lucky and was able to play for about 20 minutes though, but then it lagged up and I waited for it to clear, but it didn\'t, so i exited....Is everyone getting this lag, or is it just me??? I\'d like to know. Thanks! I hope someone can help me so that I can play this game.
Here are some specs on my computer:
512MB RAM - 266MB used, 983MB available
Intel Pentium 4 CPU 3.0 Ghz processor
Cable internet
NVIDIA GeForce 5600 Graphics Card