my eyes need bigger text too, but i never thought to check the menu from a conversation thread (as opposed to the main menu for the conversation list)...
Hi -- I'm having same problem and tried that, worked good on what is being sent to me, but not with the text box that I'm typing -- it's so darn small -- is there any way to make that bigger?
I use handcent....very easy to customize.....I have incoming text largest....outgoing a little smaller and the box I type in is about midway between those.....also have a different color background for incoming and outgoing text....I love it....