Did you happen to disable the application repositories in the application manager? This could make this happen.
The additional titlebar is supposed for Maemo4. It should never appear on the N900.
yea i did that's and disabled app manager and faster app too and still the same problem ......... and whats make this titlebar be in n900??? ,,, plz i want run this programs
It's fixed for (probably) all affected apps if you enable the Nokia repositories in HAM (Hildon Application Manager).
I can confirm this for Mediabox and FM Radio.