Weight and strength aren't really correlated. I mean look at the post that Chris posted the other day about going on looks and not numbers. It really put things into a great perspective. If you're strength is holding up and your weight is stable, then don't worry about it, but like saudades said, if you're losing a considerable amount of strength, there might be a problem. I wouldn't worry about it though, I mean if we didn't hit plateaus at some point, there'd be 500 pound monsters walking around everywhere