Davinci, I had exactly the same problem a while ago.
Here's the thread:
http://forums.pocketmatrix.com/viewtopic.php?t=3555
What it comes down to is this: we need a function to switch the mouse, like right click. They're working on it, but untill it's finished, we're out of luck I'm afraid.
But, should you wish to at least get out of the damn building, try switching to landscape and try it again. It worked for me. [but now i'm stuck at the chucky's, or snucky's or fuckys or whatever...