Is there some kind of offline mode where I could pre-download maps and use it for normal navigation as I don't have a GPS unit? I grabbed some maps after (somehow) managing to get the position somewhere in Michigan (close enough to Toronto for testing), grabbed some maps off of excite, but found navigation near impossible. Apparently the software didn't like me because I slowly started moving into the middle of Lake Huron where it subsequently stopped, in an attempt to drown me I believe.