Why does error 999 keep coming when I try to enter chat rooms?

What is Error 999 in Captcha?

• Hello, I'm trying to enter chat rooms but instead of getting my code I just get a page to Error 999 which says: If you continue to experience this error, it may be caused by one of the following: * You may want to scan your system for spyware and viruses, as they may interfere with your ability to connect to Yahoo!. For detailed information on spyware and virus protection, please visit the Yahoo! Security Center. * This problem may be due to unusual network activity coming from your Internet Service Provider. We recommend that you report this problem to them. While this error is usually temporary, if it continues and the above solutions don't resolve your problem, please let us know. Return to Yahoo! Now There is nothing wrong with my yahoo, and I'm no spammer and my ISP is working good.. this only happens when I try to log into chat rooms. How can I fix this?

• Answer:

  Same thing been happening to me??? No ones seems to know what the problem is either It works for like 10 mins the all I get is that message!!!!!