arlcd not show flash disk

Hallo to everibody,

just bought an arlcd, when connect to pc (linux, mac, and windows too) i cant see any flash device and screen remain white (of course cable checked)

i suppose device arrive broken .. any suggestion?

thanks to everybody

photo link

Did you install the latest driver for the arLCD ?

if i have undestud docomuntation to see flash disk is not necessary, and it if for windows only ...