In iChat, go to Video -> Connection Doctor from the menu bar.
If all items have a green check mark, then the problem is not on your end.
yeah everything is green, but if its not me y can other PCs connect with PCs
and at certain colleges i cant connect with Macs
how do i forward ports? maybe that will help
What router do you have? (If you're even connecting to one?)
i have no idea, im guessing its a server or something
im at college lol and its wirrless
Ahh, if you're using the campus wifi that is a problem since you don't have access. You might want to talk to your campus' IT department for help.