Is there a way to go back and read an entire conversation on Facebook chat?

[Isabella W]

The little box only holds so much, and I need to refer back to some information given to me, but I can't access it. I read somewhere to select the "more" tab, but I don't have that - the only thing available is "clear chat history." This is really important, please help.
Thanks!

 

[88hitman]

yeh i know a way, call the person you talked to anddddddddddd re do the conversation...no problem man any time