Problema con la cantidad de caracteres en un texto dinamico

[lino_yohandybr]

Mira esto lo encontre en la red porquer tenia el mismo problema y me resolvio el 100%,e spero te sirva:
Antes de que comiences tener en cuenta de poner el texto dinamico y seleccionar multilineas y listo
How to load external text into a dynamic text field with a scroll bar:

Create a new dynamic text field on the stage.
In the properties panel:
Set the instance name of the dynamic text field to "my_dynamic_text".
Set the variable name to "content".
Then in the "actionscript" layer select the first frame on the timeline.
Open the actionscript panel and enter the following actionscript.

myData = new LoadVars();

myData.onLaod = function(success){
if (success){
my_dynamic_text.text = this.content;
}
else{
trace("Error loading external content");
}
}
myData.load("my_content_2.txt");

Then In the components panel
Expand the "User Interface" category.
Select the "UIScrollBarr".
Drag and drop the scroll bar UI component over the dynamic text field.
Then in the main menu go to Control > Test Movie.