When I edit text of dialogue TESCS gives fatal error. I using windows 7.

Plug in a microphone, see if that helps.

Yeh you gots to plug in a mike, even a basic headset will do. I had this exact problem and had to go on a massive hunt to find a working mike in my house =/ Oh and make sure you put it in the right slot aswell =]

Thanks, at last it working!

Thou art welcome, lad. That's what we do here, make things work