How to change the internet connection on yahoo messenger?

i have a new dial up connection, YM doesn't allow me to sign in, I have found some forums with help for this problem. the ppl there say that i must go to messenger%26gt;preferences%26gt;connection, and change to No Proxies and to Dial-Up.The problem is that i cannot sign in and I cannot change the internet connection from outside, it won't allow itHow to change the internet connection on yahoo messenger?Start messenger on your pc %26amp; before signing onto messenger click messenger, top left , then click connection preferences.