I have a Archos Cobalt tablet.
The external micro sdcard appears empty to the tablet and to the pc when the tablet is attached via USB, debugging on. I have used app2sd to move apps to the sdcard. Without the card in they don't work so it must have moved them but it still appears as blank to the tablet and pc?
The contents of the tablets internal disk appear ok on both the tablet and in Windows so whats the difference?
I have also tried removing the card and plugging it in again.