Dynamic Text Breaks in cs5?

I’m not sure if its a specific cs5 problem, but my dynamic text boxes started breaking for seemingly no reason. I will tell it to display the contents of a variable, something like:

var myString:String = “15234m”;
TextField.text = myString;

And on screen it will display something like “m” or “1”

Ive pulled up old flash files, that were working, and as soon as I save them out as cs5, all my dynamic text fields stop working correctly.

Has anyone else had this problem?