this solution is not without risk. the spring loaded slots are not designed to "grip" the msd. thus the msd may float a bit in the slot. if on boot up the msd is not making correct contact you could blow a fuse on the nds mobo. the msd draws power so you need to make sure it's in there.
since the acekard has a 1yr warranty, i would simply send it back for a replacement. those slots are only rated for 200 insertions. tho, i've had well over 1,000 with all of my testing, listing, and beta-ing.