Hi, Anyone...any ideas/suggestions for me

My husband bought this Bread Machine from NY, JR store: Cuisinart CBK 200

1. My first loaf (from the recipe provided) - Oatmeal Bread

Settings: white, loaf size: 3, medium crust color

Outcome: The texture is coarse and the crust is tough and not brown properly

2. My 2nd Recipe (from  Bread-maker.net) - Corn Bread

Settings: white, load size: 2, dark

Outcome: The texture is coarse and the crust is tough and dark... and the whole loaf sunk in the centre

What did I do wrong?

Is it the yeast? I put that in last..

Curious,

Zane