I put a new video card in a previously stable system, no other changes. Now WoW, Ventrilo, and City of Heroes all work for a little while then crash, sometimes with an error message, sometimes without. System: AMD Phenomx4, 5gig RAM Fedora core 10 x64, installed from disk, fully updated Wine 1.1.14, installed through yum New video card: Nvidia geforce 9800gt, 1gig memory Current video driver: Nvidia 180.29, installed as part of Fedora system updates. I saw the info on wineappdb about a memory allocation issue in Wine with systems over 4gig of RAM, but this same computer set up ran perfectly stable with the old video card (on the mainboard nvidia 6150se, shared memory) so I was assuming the problem was not that. I tried putting all in game video settings to minimum and it took longer but still crashed. When ran from terminal WoW either gives me no error on crash or gives me this one: *** glibc detected *** C:\Program Files\World of Warcraft\WoW.exe: corrupted double-linked list: 0x6902d3a8 *** ======= Backtrace: ========= /lib/libc.so.6[0x601e83a4] /lib/libc.so.6[0x601ea123] /lib/libc.so.6(cfree+0x96)[0x601ea356] /usr/lib/nvidia/libGLcore.so.1[0x7cb2cd6a] City of Heroes locks up with no error message, Vent stays open and looks like it is working, but all sound (send and receive) stops, again with no error message. Sometimes I can shut down Vent and restart and it will work again for a few minutes before crashing, sometimes when I try to restart it tell me Vent is already running and I have to reboot system. The OS never locks up, just the programs, and things not running through Wine are fine. If I run rpm -qa |grep nvidia I get: xorg-x11-drv-nvidia-libs-180.29-1.fc10.i386 xorg-x11-drv-nvidia-libs-180.29-1.fc10.x86_64 kmod-nvidia-2.6.27.15-170.2.24.fc10.x86_64-180.29-1.fc10.x86_64 xorg-x11-drv-nvidia-180.29-1.fc10.x86_64 kmod-nvidia-2.6.27.12-170.2.5.fc10.x86_64-180.27-1.fc10.x86_64 kmod-nvidia-180.29-1.fc10.x86_64 I am happy to provide more info, just tell me what and how. Tricia