Thanks to all of you who replied and offered suggestions and support about resolving the problematic shifting with my Orbea Diva. I have contacted another shop (one that you suggested) in the Denver Area. I will post the name of the shop later if my problem is corrected. They agree that my Dura Ace components/shifters & derailleur should operate smoothly and quietly and think it is an alignment problem. The plan is to check out the rear derailleur hanger first, then the rear derailleur, head set and shifters. If they can't resolve the shifting issue, they think it could be a frame problem and have have offered to help me with a warranty frame replacement from Orbea. I am very frustrated that the bike shop who sold me my Orbea (new in 07) has not been able to resolve my shifting issues. I will keep you updated on the outcome. P.S. The reason I had to have the bottom bracket replaced is because I rode through heavy rain and deep puddles for the last 15 miles of the Triple Bypass this summer and somehow water got in and trashed it.