I took the glass doors off the Ouverture very carefully and cleaned them, they needed cleaning badly after 15 years :-) but one of the black clips that is glued to the glass needs re-gluing to be on the safe side, so I might as well re-glue all four, do I just use superglue, or araldite, not sure what would be best, and am open to some advice from others on this, thanks.

I always used traditional Araldite with good results.

I don't think I would trust superglue for that particular job.