I am having a problem with my brakes that I have never heard of before.  If
I press on the brake pedal just hard enough to slow down, the brake pedal
will stay at that position, it will not return to the top of the pedal
travel. I either have to put my foot under the pedal and pull it back  up or
if I come to a complete stop and push real hard on the pedal it will return
normally.  Has anyone else ever had this problem?  Anyone know the fix? 

Thanks, 

Charlie