Hi, list users! I finally decided to make my laptop happy by replacing its SuSE 7.1 with the brand new 8.1 Pro. So, I made a clean new install from DVD. By the way, it was a pleasant surprise to get the job done in no more than 30 min.(OK, I had some minor problems with apm/acpi ons and offs, but solved them by putting apm=on, acpi=off in my kernel boot line). Just for reference, the laptop is HP OmniBook 6000 (PIII/850MHz/256MbRAM). Now, I can not believe myself, but it seems that my laptop's battery life decreased significantly after this upgrade. Here, by "significantly", I mean: it's not above 3 hours any more, but just about 2 hours, or even less. Thus, it is more than 30% decrease. I think I remember someone on this list mentioned power consumption of ReiserFS. May that be the cause of the problem, since I used ext before? If that is true, what could be the file system of choice for laptops, regarding battery consumption. I would like to avoid by all means experiments, like e.g. to reformat/revert back to 7.1, and check the battery life again. Any thoughts/hints/experience by list users highly appreciated. TIA Radule Soskic