I just found this forum and it looks amazing, so much great information. I'm pleased to meet you all.
I have been making bread in a bread machine for almost 2 years. I have a black and decker and i've always gotten great results. The last two loaves I made in the last few weeks have come out concave on top and with a weird gooey texture.
The first time it happened I thought it was just an old yeast issue and it was a recipe I was less familar with.