Mapopolis on Palm Pilot Professional



I want to put mapopolis and gps on my palm pilot professional.
IT's working fine on a handspring visor 2meg pda with Palm OS 3.1H2.
I beamed it over to the palm pilot professional 2meg pda
with palm OS 3.3. When I try to run it, the error message is
"insufficient memory to run..." But I have more free memory than
I do on the handspring.
Suggestions?
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