How to Hide FPM Close button

Hi,

I have created one FPM application. When that application is called from portal, an aditional button 'CLOSE' is appearing.

I did not put that button to FPM application and when I test the application from R/3, the button is not appearing. But it appears on portal. How hide this close button ?

(I have also posted the same message to FPM Forum.)

Thanks in advance..

Vikrant