[ubuntu] Installation hangs and display becomes corrupted 12.10 64-bit

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http://ubuntuforums.org – Hi, I am attempting to install the x86-64 version of Ubuntu 12.10 on my desktop, but approximately 3/4 of the way through the install, it hangs and my display becomes corrupted. I have left it alone for 2 additional hours just to make sure that it isn't continuing installing in the background, and I have tried with the grab updates/3rd party toggles on and off. When I first boot up, everything works perfectly from the liveCD until I try to run the installer. Hardware: Gigabyte EP45T-UD3P Motherboard Intel Core 2 Quad Q9400 CPU ATI Radeon HD 5770 GPU lspci: Code: 00:00.0 Host bridge: I (Hardware)