There's a line across the top of the 'text' icons (Where you change font size and colour... and add Emoticons) just under the 'chat window'


Yes. That's the one I was talking about when I said this...

Subject: RE: BS: AIM, Gaim, Trillian, input please?
From: CarolC - PM
Date: 11 Jan 06 - 03:22 PM

However, I did just try dragging the bottom of the box I didn't need to resize, and that resulted in changing the size of the box I did want to change. Problem solved.