AOL Instant Messanger changing users

I’m visiting my dad right now, who has AOL. Aparently when you load AOL, it automatically opens IM with the username you used to log into the internet. I can’t seem to find a way to log off of IM with his name and back on with mine. Will I have to download a separate copy of IM or am I missing something obvious?

Nah mate. Very simply log on as him, then click on “My AIM” at the top of the b.l. and go to “switch screen name”.