Hi, thank you for your answer. I play with Ubuntu 9.04 Jaunty Jackalope 64 bits + Ext4 My wine Version is 1.0.1 And I Use Nvidia's not free video driver - nvidia-glx-180 (don't know how to get more details :s) I really need help, Yesterday night, my system reboot 5 times in two hours when I was tanking a mob ^^