Something I just did was to use PowerStrip to set my screen resolution to 3000x2000 (no, I don't have an ultra-high resolution monitor; the display driver handled this by scrolling the desktop), and then I could get a rather high resolution (about 3000x3000) map of the moon with VMA just by scrolling, exporting to bmp, and then putting the bmp images together (in the Gimp).