На сайте производителя пишут следующее:
SOLUTION 1 – Download and install the latest Windows Media Player
SOLUTION 2 – If you're running Windows Vista, apply the following hotfix - KB940199
SOLUTION 3 – Download and Install the MTP Porting Kit SOLUTION 4 – Try connecting the device to the PC using MSC mode
View/c200: Turn on & press and hold the rewind button while connecting to the PC
Fuze/e200: Go to Settings > System Settings > USB Mode & select MSC
Clip: Go to Settings > USB mode & select MSC
А кто знает где взять MTP Porting Kit?