Hi I own a presario v6000 (dv6139eu exactly) with many issues that i been solving since fc6 but with this one, I`m clueless. I installed and played quake4 (it is a great game!!), but when I updated the kernel to 2.6.22 to fix some issues like random crashes, freeze, the graphics turned ugly so I went back to 96xx legacy nvidia driver version and continued playing till I finished the hole game (several sessions) but today with the same driver, the same kernel, the same game, it just reboots, with googleearth does the same and with mplayer did the same once, I'm not using beryl or compiz, xorg.conf is well configured btw: dont buy compaq-hp laptops to run linux -- [Jorge J. Boscán Etura] quando omni flunkus moritatus