lumpynose

I've borrowed a coworker's iPAQ 4350 (he uses it for testing stuff) while I'm waiting for my X50v to arrive. There's an application called Pictures, which has the option to do a slide show of your pictures when the PDA is in the cradle. What's the right size so that it doesn't have to shrink or expand the pictures so that they'll fit the available screen space exactly? Can I always resize my pictures to 640x480 for the X50v? Or will I need to use 320x240 in some situations? I don't understand the VGA versus QVGA stuff on the X50v.

Thanks.