SD card from nokia phones for some reason never really want o pick up.
Did you do a restart to see if it picks it up after that.
Have no idea what phone you got since we only use nokia and sony Erickson in this house can only advise you on those 2 and the only ones to ever do that is the nokia phones for some reason.
Its an HTC tattoo- and for some reason Ive always had issues at work, its fine at home, but I just dled a load of games I wanna try and it wont play along Time to bug my brother i think