Thanks for the responses.
If I understand, then you suggest that my developer may be contaminated? How would I test that?

I guess I could develop a peice of unexposed paper and look at it before blixing? What should I see?
The problem that I foresee is that the paper I use (Fuji crystal archive) has a blue coating, I guess this will be there until I blix? So maybe this would not work?
Any ideas are really welcome!!