Command and Conquer 3 problems

Hey
I just bought and received a copy of Command and Conquer 3 from Apple. I have two issues/questions for you guys. First, I can't connect online to play multiplayer. I sign on but it takes about 30 seconds and than comes up with the message "could not connect". I have done some research on this and most people blame it on the ip address or the router. I can't change the router or the ip address due to the fact that i live on a college campus and am using the college network. Does anyone know of a solution for this? Also, when i play the game it takes up the full screen and wont allow me to use spaces. If anyone knows a solution to either of these problems, I would appreciate it.

Thanks,
BlizZ

Sorry I usually don't do this, but II'm bumping the thread

too add onto the information i have provided, One of my friends (who also has a macbook pro) can't get her Command and Conquer 3 to work either

I would really like to know a fix for this, cause i bought the game for the sole purpose of playing online

Thanks in advance
BlizZ

Thanks for the reply!
I do have all the patches and have recently reinstalled them.

Is there a way to get around the network blocking?

ugh at that sucks... counter strike source works well on my windows side

Why can't i change the port or something?