System details/ video card/Driver is empty and Experience shows "restreint" which means limited in french. My video card is : intel GMA 4500mhd, lscpi shows driver=i915 latency=0. I can only use gnome (no effects) and I would like to use Gnome3 again (as I did with ubuntu 12.04). Thanks
Xorg.conf is empty, and I would provide Xorg.0.log but I don't know how to attach it to this post.
Note: a 12.10 live usb works flawlessly on my machine. But I cannot reinstall everything.