glacier,
You must be a guy, cause us guys typically only like to read the instructions as a last resort. If you look at the Getting Started foldout that came with your Z you'll see that one of the first steps is to slide that switch to on.
How do you like your Z so far? This is about my 9th "Mobile Tool" (ada PDA), and I have to say it is the coolest so far. Still not the perfect device, but much closer than any I've owned. More memory would be nice, and keeping the four inch screen in a clamshell form factor would help too. But you just can't beat Linux on a handheld, imho.
Regards,
gdog