mapthis without gps?

I know .03 has a version for those without a GPS, but what about the newer versions? I have tried everything that I can to try and get it to load. All the recent versions just freeze at the select map screen, or freeze as soon as the map loads up. Tried about every combination of PRX and different maps from big to as small as I can make them.

I finally am about to give up, but it kind of hit me since it says it is a gps edition, that maybe it is trying to load up a GPS that isn't there. Thanks for the input!

P.S. Using 3.40OE firmware, if that matters.