I reinstalled the driver 0.9831 and:
Driver installation went through? Yes, with no error as usual
Reboot? Yes, asked to reboot. I have done this. No error after reboot. The application "acourateconvolver" is configured to load and connect to UFX II in the autostart Win7. This did not work. Thats how I first recognized the problem.
Settings dialog can open? No, neither Madiface series Settings nor Totalmix opens
UFX II shows up in Device Manager? Yes but with a warning symbol (yellow triangle).
Under general: Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)
Under Driver is see: 0.9.831.0 RME GmbH
Peter:
obviously the driver is installed but not loaded by Win7 due to the above error message.
How to fix?
Short fix at the moment is to go back to driver 0.9827. Looks to work with latest FW update (flash) and Totalmix 1.93.
Best regards
Peter