Hi there []
I bought my Klipsch Quintett II last week and tried to mount them on the wall as well. I had the same effect that if you have a position to set which is not 0° or 90° but inbetween (eg 45°) the speakers will "fall down forward". I took out the 3 screws and the rubber thing - put in the rubber thing again and tried to thighten the screws with a set position of the speakers but as soon they are on the wall they tend to slide face downwards.
Any other tipps what I could do? If I don't get them into the right postion i won't be able to use them.
@ roymcfarland: what did you do to fix them?
cheers, ML99