Question: why are all my chat programs shutting down that i am signed on at another location? 

Answer: This happens to me a lot in MSN messenger. You have probably signed on before at another computer and without realizing, you have checked the "Automatically sign me on when connected to the internet" box. Therefore when that computer gets connected to the internet, it will sign on and logg you off. You will have to remember which computer you have signed on before and try to get hold of that computer's owner to sort things out.
This question from the Yahoo Q&A forum is categorized in the topic: Computers & Internet