hi forum, i got the typical black screen "an error occured" (in german it's "es ist ein fehler aufgetreten", don't know the exact english translation), even when the r4 gold card is not inserted. typically it occurs when i try to access system settings, sometimes also if i try to start a game (e.g. mario kart 7). is is behaviour normal, is the 3ds able to track down that i used a r4 gold card? or is it just a genereal problem with the console (i bought it on ebay). thanks for your help.