Well, this does it. I was considering sending my PB 15 back to Amazon due to seeing some faint lines. Now I will definately do it! It was almost perfect otherwise, no dead pixels and the battery lasted over 4 hours. Then I did the recalibration of the battery... Now it lasts about 10 minutes! Looses 1% per minute. It is going back. I had such high hopes for the last PPC powerbook. Oh well, lets hope the intel PBs have better quality!