I've installed Precise Pangolin 64-bit on Acer 7250, 6Gib DDR3, AMD Radeon HD 6310, and it always crashes. When I start on the system, it run until the launching of the x-server, and the computer freezes, but if I connect the network interface with another PC it works without any problem. I have Windows 7 on the same PC and I don't have any problem there.
Help me to solve this problem please.