ok......... umm well i dont think people buy/bought a DS for the graphics, they buy/bought it because the games are.. you know.. fun

and to answer your question no i dont agree with u

well, everytime i turn my DS up-side-down inside the front cover, it looks like the white coating is melting off..

Very strange lol

Well MY top 5, in no order:

Pokemon D/P

Jump Ultimate Stars

Mario Kart DS

Castlevania DOS

Bleach DS 2nd

Well are you trying to play on the same catridge as each other ?

If yes then that might be the problem, because i think after youve connected to wifi once, the game you connected with only lets you play Wi fi on the DS you first connected with... so that might be why but im not sure