ez430 chronos fet problem

Hey together,

yesterday I got the eZ430-chronos development tool.

At the moment I try to reprogram the chronos.

I installed the latest version of CCS on an windows7 64bit machine.

The problem is, if I plug in the USB FET, the computer will not recognize and also don't install the driver!

I have no idea what I can do...I tried to reinstall ccs, tried other usb ports...

Maybe you can tell me, what I can do or gave me some hints what I can try

Thank you very much

Best regards, michael