Error using control system toolbox

Whenever i try to plot using control system toolbox i get this error saying that "Error using controlSystemDesigner (line 245)

Attempt to execute SCRIPT text as a function:"

Futher the application got hanged in the desiner window, and i have to force stop Matlab by task manager

Is there any solution for this?

[Amir Hosein Fardi]

I have also this problem!!!!

did u find a solution???/

[Walter Roberson]

The text.m file in the document directory needs to be renamed to something else