Hi, Last night i posted message asking on help to aviod my system shutdown by it self. Well put statement suggested in lilo.con in the appriate localtion suggested but jut know the system in question just power off again for no good reason. I am running SuSe 7.1 Kernel 2.4.13 Mantel RPM. 512 MB RAM 10 GB (ReiserFS / ext2 /boot) Matorx Millimum 2 MB (It's work machine ) D-Link 538 TX+ 10/100 MB What noticed this occurs when memory drop below 350 MB the system shutdown when i am going in to X/Gnome. What i find strange is i am running RH 7.1 + Kernel 2.4.13 Kernel.org with exact same MB/RAM/HD/NIC etc.. and all it well with it. I have had this problems since kernel 2.4.0 . I have checked RAM with memtest and it check out i have switched ram from RH 7.1 Box with this one done memory test as well it check out but still occurs. I have always love SuSe but seriously thinking of calling it quit's with this distro. I never any problems with other distro/kernels acting like this. Any ideas :) Alex :)