Change screen orientation in android tv box

[tmprog]

Hi everybody
Last month I bought IDER A10 TV box. I'm trying to set its orientation to portrait mode. Unfortunatelly, all apps from android market dont solve problem - some of them display info that orientation is changed but nothing is changed on the screen.
Do You know how to solve this problem? Is it possible at all? Maybe it is possible via some sdk? I'm new to android so I'll be greatfull for any help.
IDER A10 uses android 2.3.4

Thanks in advice