Silly flash question

I’m new to the flash and actionscript 2.0 world but i have a silly question, i’m just trying to build a calculator template to play around with and i have created a input textbox but when i run the swf i can only input certain letters and doesn’t let me input some characters and numbers?

i thought maybe i need to tell the text to allow A-Z and 0-9 but i dont see that anywhere.

Can someone let me know what i’m overlooking ?