I have 32GB SanDisk micro SD in my Transformer. The transformer won't let me do anything at all to the card. I can read it but writing and deleting is out of the question. It appears deleted in the first moment but then the file reappear back just like it was never deleted. Windows won't even mount the card. I tried linux too (before my laptop broke) i managed to mount it there with no problems. Deleting again out of the question. I tried fdsik to check, i tried to dd the card with all zeros. Nothing seems to work. Does anyone have similar problems?