My windows in the house are 2 open position windows, turn the handle 90 degrees and the window opens out, turn the handle down and it locks, turn the handle up and the window opens at the top and pulls towards you a couple of inches. The problem I have is that 3 of my windows only open when at the top despite what position the handle is in, this is also preventing me from locking the windows. I have sprayed some WD 40 at the latching mechanism but still no good. Any ideas?