yup, firmware downgrade is not an option for f200. it wouldn't change much anyway.
there is some learning curve with gp2x software as it comes from different places. everyone tries their best but there are multiple ways to do the same thing (as far as where to store files, which buttons do what, etc).
basically it boils down to:
- check the wiki
- read the readmes (sometimes apps or files have to be in a specific place)
- search the forum
- get a card reader
- check your batteries!!
in no particular order.
also, amiga is a tough one to start with. you need a specific overdumped version of the kickstart rom.
check out picodrive, get you gp2x confidence up
don't forget about cool homebrew & ports like parkydr's linked in his sig, or sqdef, cave story, ghostpix, tecnoballz, many more...
*parky...i can has tuchskrn liquidwar plz?