well since you just got flamed straight to hell. im gonna give you a descent answer. you simply got booted by a prog (known as booters) the progs are quite easy to make in visual basic they can have a lot of skiddie and pretty lame options like boots and scrollers and laggers they can add my name to your yahoo friends list fulling it to max. can make your IE go nuts by shutting it down or by making it dl just about any of your own files to your desktop. there are java boot codes for the java chat sites too that can pretty much do the same. these are really easy progs to makee if you understand winsock programming in vb . a few sites that are big on this are www.eliteprodigy.com ( coldfyr3 even made his own yahoo chat client) and www.yahpro.org boots and protection can be found at both sites stay alive pro is also great protection as it stops your apps from crashing such as messenger while your getting booted . the boot codes change constantly as yahoo tries to keep up with patching the exploits being used there are literaly thousands of yahoo progs for booting or for crackin id's if you got any questions on this subject you can pm me here or on the same id on yahoo as i have made used and understand how these progs work....