Comment 21 for bug 660596

Until last week I have 256.53 nvidia driver, but I was working with openGL and with this driver every time I use openGL the screen blinks in black for a second (I have the same problem in windows xp) so I tried to update the driver and then I had the problem that is described here.

But I do not remember as I had installed the driver. I know I did a clean ubuntu 10.10 with the nvidia installer, but do not remember having changed the grub or xorg.conf.

I am currently using the 173 installed from the repositories and kubuntu desktop effects are very slow, so maybe (if I feel brave) I will try what it says Rho_T.