PLEASE HELP ME WITH AIM

I currently have the newest AIM. I was using it fine, until today. Whenever I try and send an IM, it takes 7 seconds for it to appear on my screen. I have a cable modem and no lag. So, I type the message, then click send, and it takes 7 seconds for it to appear, and i can't do anything until it appears on my screen. Please help me with this problem. Thanks you