Nabisco Sugar Wafers

I love Biscos...or I used to love Biscos. I stopped buying them regularly about a year ago because they are so good I would just inhale them. Then 6 months ago I bought a box and they didn't taste quite right. I noticed for a while they were not on the shelves at the super market. But this week I saw them, and thought I would try them again. They are horrible. The wafer part is thinner and not as crisp, and the filling leaves a slimy coating in my mouth. I called Nabisco (Kraft) and was told they didn't change their formulation, and there was no explanation except that maybe my super market didn't store the packages properly. Does anyone know what happened to Biscos???