My 4GB MicroSD isnt recognized any longer by my laptop, desktop, Treo 700wx, camera, SPH-A920 or my Kyocera 7135. If I place the card in my SanDisk MicroMate SD to USB adapter and place the connected combo in the desktop or laptop the card is working perfectly.

I have reformatted the card while in the SD to USB adapter to try and resurrect it but that didn't work. Is there another trick?