I bought a new N70 two weeks ago and everything was OK until I started the N70 Tutorial->Interface->Keys and watched all of the 16 slides then pressed Back to exit Keys part, then Exit to exit the Tutorial, then Exit to exit My Own sub-menu and it took more than 15 seconds to exit to the Main Menu. After all that I started to notice some flickering (such as white rectangles) in some parts of the screen when I start some applications or open some menus. This is mainly clear when I start any of the Quick Office applications such as the Adobe Reader. It seams that the phone became slower in refreshing the screen. Can anyone help me solve this problem.