Hi Bronxteck, thank you for the first concrete hints! There are no duplicate kexts in the extensions folders (in my first attempt I confused the two folders but source has been eradicated). could you explain, plz, what the difference between myfix and the repairing via kext wizard and how I could possibly figure out, which kexts cause the trouble? I have been using "approved" kexts (according to the various authors) and everybody but me seems to be able to claim the throne for the dw 1702. I´m at a loss... another helping hand, please?