I've been having this problem for awhile now. Whenever I remove my micro sd and put it back in, the ds won't read the r4. Normally the after the warning sign goes, the r4 auto boots up to the menu. However, even though my r4 is in securly and the msd is in it too, it will have the touch the screen to continue thing at the bottom. I've tried putting the paper behind the r4, but that was only a temporary solution and once I took the msd out, it wouldn't work again. I'm pretty sure it's a connection error and nothing wrong with my ds because I've tried it with a normal cart, and everything worked fine. Any solutions? Thanks.