Sally, thank you so much for the tip about the vent plugs... I'm thinking that was my problem!! After 2 hatches with only one chick hatching really early, I pulled out he vent plugs and the last one was 3 for 3 (even though 1 had the leg problems, and so far, this hatch 5 of 7 have hatched!! I'm SO happy to be getting live chicks... I was ready to give up. Day 21 isn't over until about noon tomorrow, so the other two still have time. One had great movement at lockdown, and one is such a dark egg, I couldn't see a thing, even with 2 lights, so I have no idea what to expect...