Selection.SetFocus(inputfield) no cursor

Hi,

I have user various methods to get what i want.
I am usin a textInput component and want to have the cursor blinking in it when movie plays. The component sits on main root and firstframe.
I have used

inputfield.SetFocus();
Selection.SetFocus(inputfield)

none of them work :S

Any suggestions or tips would be nice
Thanks in advance!