Thanks for getting back to us, Paul. I'm sorry to hear that. Could you perhaps take a few pictures of your old latch as fully removed from the window, then? There may be a difference in the portion of the latch that slides into the sash, and I'd just like to make sure.
If there isn't a difference, then there may be a problem with the slots in the jamb itself. But let's eliminate all other possibilities before we go on.
I'm sorry but when I took them out they fell apart and I 86 them. Is there any other suggestions????????
What condition are the slots themselves in? Is there any damage on the inside that you can see? Anything that may keep the latches from fitting well?