Hello, I had a m3 simply a year ago. i used to dont have any problems but it ds couldnt read if i haven't blow in to the cartige and slot-1. my friend had the same situation as like mine. we both changed to r4 (we were happy with the m3simply) but r4 started to the same thing. When i power up the console (after a 4-5 hours since the last play) our console cant read the card until i have to blow in the cardtige and slot-1. No im leaving the console in dust or using in horrible ways. it just suck at open up. i would have thought my ds is the problem but my friend have the same problems too (we have bought the ds's from diffirent locations and diffirent times) there's no way our ds is the problem. are we the only one's having this problem? if not im going to change my card again into acecard or cyclods (or what ever is the best and the problemless one which you will advise) thanks and sorry for the poor english. edit : i know about the stuck at "loading" screen. no this is not it. it just cant read at the nintendo ds startup screen etid 2 : forgot to mention, sometimes when i play the game freezes and cant do anything. after i restart the console the console cant read the cardtige.