Supercard MiniSD

[mudderz]

Hello i just bought a supercard miniSD i received it today instantly got it updated it loaded it with some roms and started to play.
anyways after about an hour of game play i took the micro sd out of the card to put more roms on it and when i started my gba it says
Not FAT Format
Please turn off GBA

So my micro sd is a 2gb Sandisk on FAT format and ive tried FAT and FAT32

id like to add that i did do a test(holding L and R while starting)
Test SRAM
SRAM ok!

Test sdram
sdram ok!

Test flash
flash id ok!
flash ok!

Test SD/MMC
SD/MMC ok!
not find test file

Now SC Version:1.85

-ive tried GBATemp and no help from them yet and the official supercard forums is practically dead
Any help would be greatly appreciated
-as i just received and would like more out of it then a few hours..