2 GB Kingston MMC Mobile Dual Voltage (RS MMC) in my Nokia 770 - Memory Card Corrupted....

Card is visibe when 770 is connected to my laptop. Formated - Fat32 and then Fat 16- and operational while connected to laptop.

No possibility to use it with Nokia 770 - card not installed or corrupted.

OS 2006

any clue?

EDIT:
1 GB Kingston MMC Mobile Dual Voltage (RS MMC) works fine. Still have no clue why 2 GB card doesn't work with my Nokia 770.