I have tried to use MAME (not the Mega version) on a iPaq 3630 with 32 MB RAM. When I run MAME I have approx 2.5 MB Storage RAM and 9 MB Program RAM. I try to use some simple ROMs like MSPACMAN, MoonPatrol and BombJack, but while it recognises one or some of them -shown on the screen- it turns the screen black for a couple of seconds and then returns to the MAME screen...

Any ideas (these ROMS work on MAME Win 95/98 (MAMEW or MAME32)