So Dan Houg says:
> chattering blades is to place the jaws of a cresent wrench on the 
>  flat part of the wiper arm and 'adjust' the blade so that it is perpendicular
>  to the glass.  This gives the blade the choice (free-will for wipers!) of 
> flipping either direction depending on the sweep.
> 
> I know you know you knew this already, right?
> Dan H.
> 

Yeah, but do I want to do this?  I don't want to lose too much pressure
of the blade against the window or it will not give a good wipe.  I'll
play with the adjustment and see.

Steven

sjohnson@pcocd2.intel.com