oh boy did i screw the pooch. in trying to fix this, i accidentally deleted some important mala files and lost ALL of my set ups. i just spent the whole day getting each set up back up and running, wow.
but, i did track the 5200 issue. seems i had a couple of roms that ended with a bracket [ so as i scrolled thru the list and came to one of those, it would lock up. weird.
anyways, back up and running, what a crappy day!