It seems that custom WAD files can be installed on firmware 3.3 (ok, so i haven't tested this, but i presume this is the case, judging by what has been said on these forums) what i don't get is how this is possible: when a wad has been changed in any way, it has to be signed with trucha. but the new update blocks trucha signatures. so how can these wads still be installed? or... have i got this all wrong? does the new firmware block custom wads?