Unique DES-69 magazine catch?

Does anyone know just how to remove the magazine catch from the frame? I cannot quite tell from what diagrams I can find. 

My new (to me) DES-69 will not retain the magazine. It looks like the catch does not go into the frame far enough. If I can get it out, maybe I can do something with it...........

Thanks.

Ric

I'm shooting mine tonight,but I'll try to get it pulled apart after that and we can compare what's going on.I don't remember what does what under the grips.Does it do it with the grips removed as well as installed?-Mike

A gentleman from New Zealand replied to the question on the Target Talk forum. It just unscrews. A friend and I took it apart and fixed the problem.

Thanks for the reply.

Here is my somewhat unique Unique................