SGE 6.1 - Data Exchange USB Stick not recognized as already encrypted

Hello community,

we've resently installed Safeguard Enterprise with DataExchange.

DX policy:
- AES 256

- no unencrypted folder

- copy SGportable

- user may not abort encryption

- user is asked for encryption

- file-based enc.

Now we are have trouble with USB Sticks witch were already accepted to encrypt right after the promt to do it.

If another User plugs in the USB stick into his PC and both Users are in the same AD-OU and do have the same Keys in their keyrings the SGN-Client doesn't recognize the USB Stick as already partial encrypted and RE-encrypts the already encrypted files including SGportable and stuff.

What am I doing wrong ??!!?

Thanks in advance

cheers,

chris