I'm on a Mac and use Apple's Safari browser, so my situation is different than most players. Yeah, when I first read simfulicious' post at the beginning I couldn't identify with what she was talking about.
Now , I don't know if this makes a difference or not, but my Dynasty updates are always done in a word processor and then copied to a Reply box. I don't sit and actually type stuff out in the Reply box. I'll copy and paste everything to the Reply box and then do some final tweaking.