Here's the inverse of the other thread - there's a band or artist you love, but for one reason or another, there is one album that you just cannot get into, or for one reason or another you just simply ignore but you seem to enjoy the rest of their discography.
Off the top of my head, I think the first band I could think of would be Yes. Until Heaven And Earth, I could listen to pretty much any of their albums and enjoy them (yes, even Open Your Eyes), but their last studio album was a real bore and snoozefest for me. I don't think I've listened to it since the month it was released. Every other album before that has at least quite a few redeeming songs and qualities about it but H&E is so awful, and even though it had one song that I liked, I just never went back to it.
I tried to think if there was a Rush or Dream Theater album that I just did not like, but I really do enjoy all of their albums (even the lesser-well-received ones, like early Rush or DT's debut and Falling Into Infinity).
-Marc.