As noted in one of the follow-up posts, if you loosen the screw that holds the arm to the bracket you can get more adjustiment out of the mirror. I did this on mine and it works OK. There are also different arms configurations that might work for you if you can't make this one work.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.