i had the same problem when puting on my new old door. the problem for me was that the plate that holds the little see/sor hook thing wasn't high enough to actually make an effect on the opening thingy, so wit the screw hole on the right i filled it out a bit more to the bottom so i could put it up hire, and with the other one i filled it justa slight bit to the left so i could move it slightly to the right.
this migth not be the problem with yours, you just got to poke around and find out. and see what needs ajjusting.
some -ones bound to say i did it all worng.

fair enough though, i'm inexperienced, but it hasn't stopped working since

so i'm happy.
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Sunday Morning Mini Sprint
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