Don't completely understand ur Q. But doesn't sound right.
Posted from my CrackBerry at wapforums.crackberry.com
You're in the main (home) screen in portrait mode. Then press the BBERRY button to go to all the icons. Then flip your Storm into landscape mode (horizontal). Then flip your Storm back into portrait mode (vertical). Rather than showing the icons in the portrait mode, it goes back to your home screen.