Thanks for the tip. I won't be able to find the Mango Device drivers alone. On Windows 7 family 32 bits: no BSOD for the moment - even taking out the USB cable in DAC mode (I had the problem with beta drivers). After installing the drivers, I had no sound. Reboot the PC. Still nothing. Took out the USB cable and took in (sorry for my bad english). Went in "Sound" options of Windows and made a test on iBasso Mango Hifi Audio Device. And it works ! Notice: I had problems with my Wacom graphic tablet and beta versions of pilots. It seems there is no more incompatibility.