I bought a second micro SD the other day to separate my games from my music on my DS... but my computer doesn't even make an attempt to load the card.... geh... I have tried it on three different computers, and with both a USB and SD card adapter... any help would be lovely btw... it's a 1GB Lexar microSD
Try wiping the Micro SD card (try not to lose it lol). Or maybe its the connectors that are screwing up?
Don't you get it?! His card isn't recognised by any PC he tries. HE CAN'T PUT ANYTHING ON IT! I can only guess that the card must be a dud. You could send it back for a replacement, but only if nothing else works.
Better send it back quick, IMO. The warranty on these MicroSD cards usually aren't that long, and if you want a quick replacement it has to be within store warranty, too.