The problem occurs with several recent wine versions. Simple applications/games work ok, but more complex do not. I have this problem eg. with Star Wars Knights of Old Republic and Railroad Tycoon 3 - both crash after several seconds. Both game are rated gold/platinum and since not only wine crashes but whole PC, so I guess there is some other underlying problem. I also suppose that it is not a hardware problem since I cannot reproduce it outside wine using linux games or win games on windows. These games used to run ok on my system but I cannot point to any specific moment when the problem appeared. Wine USE="X alsa dbus gecko lcms ncurses opengl perl png ssl threads truetype xml" I have x11-drivers/nvidia-drivers-195.36.03, sys-kernel/gentoo-sources-2.6.32-r1, x11-base/xorg-server-1.7.4 but tried downgrading and the problem was still there. My graphic board is geforce 8800gt. Neither CPU nor GPU is overclocked. Reproducible: Always Portage 2.1.7.17 (default/linux/amd64/10.0/desktop, gcc-4.3.4, glibc-2.10.1-r1, 2.6.32-gentoo-r1 x86_64) ================================================================= System uname: Linux-2.6.32-gentoo-r1-x86_64-AMD_Athlon-tm-_II_X3_425_Processor-with-gentoo-2.0.1 Timestamp of tree: Thu, 11 Feb 2010 18:00:01 +0000 app-shells/bash: 4.0_p35 dev-lang/python: 2.6.4 dev-util/cmake: 2.6.4-r3 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.6.0-r1 sys-apps/sandbox: 1.6-r2 sys-devel/autoconf: 2.13, 2.63-r1 sys-devel/automake: 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.18-r3 sys-devel/gcc: 4.3.4 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6b virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/init.d /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/udev/rules.d /etc/xdg" CXXFLAGS="-O2 -march=native -pipe" DISTDIR="/mnt/gentoo/distfiles" FEATURES="assume-digests distlocks fixpackages news parallel-fetch protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" LANG="pl_PL" LDFLAGS="-Wl,-O1" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/mnt/gentoo/build" PORTDIR="/mnt/gentoo/portage" PORTDIR_OVERLAY="/usr/portage/local/layman/sunrise /usr/portage/local/layman/ruby /usr/portage/local/layman/kde-sunset /mnt/gentoo/portage/local" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 branding bzip2 cairo cdr cli consolekit cracklib crypt cxx dbus dri dts dvd dvdr eds emboss encode evo exif fam firefox flac fortran gif gpm gtk gtk2 hal iconv jpeg kpathsea lame lcms lirc mad mikmod mmx mmxext mng modules mp3 mp4 mpeg mudflap multilib musepack mysql ncurses nls nptl nptlonly nvidia offensive ogg opengl openmp pam pcre pdf perl png postscript ppds pppd python qt3support quicktime readline reflection sdl session smp spell spl sse sse2 sse3 sse4a ssl ssse3 svg sysfs tcpd tetex thunar tiff truetype truetype-fonts unicode usb userlocales vdpau vorbis x264 xml xorg xulrunner xv xvid zlib" ALSA_CARDS="intel8x0 emu10k1 virtuoso" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIRC_DEVICES="serial" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nvidia s3 vesa vga" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
userspace programs should not make computers reboot. check the hardware or the kernel, but i highly doubt wine or the games it runs is to blame.
I highly suspect the nvidia drivers to be the culprit here
