The last two items in sub menus are somewhat dimmer and appear to have a pinkish hue. I don't see this on any other screen, only when I open a menu. Are my eyes playing tricks on me or could this be display damage? The device is 5 days old and the top buttons and trackball are very stiff. I worry that I'm pressing too hard. I know It's hard to tell without looking but experience with display damage would be appreciated. Thanks.