After having put the display to sleep, a blue flicker appears when restored. I can solve it by re-setting the resolution with nvidia-settings. I don't know if it is a problem in Xorg 7.3 or the new nvidia drivers. Any suggest to solve it? Resolution 1280x800 Processor amd turion64 X2 Xorg 7.3 nvidia 169.12 (ubuntu hardy version) kernel 2.6.24