TBS 6522 T/T2 problem

I don't have the terrestrial tuners responding using either Crazyscan2 or DVBDream in my Windows 7. My latest Crazyscan2 (1.0.2.140) chucks it out - "RFScan2 failed".

I'm using the little Change Mode Tool to change from the default S/S2 tuners.

So I have to go back to the TBS6220.

Has anybody had any success with TBS6522 T/T2 tuners on Win7? or any Windows version?