I have the same problem and symptoms as described by Rosiebs_Dad in "Part 9" of this thread. I have a Windows 7 Ultimate x64 (English version), patched with yesterday's big patch batch. Yesterday I took the notebook from the office and worked on the train like I am used to, and I got home without running out the battery. This morning I started the computer, usually the battery lasts until I get back to the office and it still has some juice left. This morning however, the battery did not last the full trip. Well, never mind I thought, I'll just plug in when I arrive and that's it.