Thank you for your help! I tried "acpi=off" and now it starts also in battery mode! Well, I have to live with loosing the battery symbol in this mode, I think? For more details of the notebook: It has an Intel Pentium M 750, 1.86 GHz 15,0 XGA X-black LCD monitor ATI Mobility Radeon X700 25...

Hello, first of all, I hope you understand my "german" english. I use puppy linux 5.2 on a Sony Vaio VGN-BX195XP with 2 GB mainmemory. I use a dualboot version with Windows XP. The harddrive works with NTFS. I like it very well. But every time I only use the battery mode, puppy is freezing...