This is driving me mad! I have a Sandisk 4GB microSD card which came with my CycloDS. However, when I place it in the Transflash silver card reader and place into my PC, the properties option shows that it is only a 1GB card! The printing on the actual microSD card says 4GB. I have tried to put over 1GB worth of data on there and it says that it's full. What is the issue here!!