gpad 7.0 tablet: I'm having trouble using maps with excel. It shows both as selected, but when I switch from one to the other, it closes and i have to re-open excel after looking at maps. I need them both available. My new att zte phone will run both apps fine. I can switch from one to the other with no problem. But the screen on the phone is too small to be practical. I need this feature on my tablet. Any ideas?