hi, currently am on Ubuntu 12.10-amd64, its' quiet often when i reboot or starts-up my notebook, it gets hanged with a blank-screen(Ubuntu-Colored bg), & these days either its kindda compelling me to go for Ctrl+Alt+Del(repeatedly)to reboot or else kindda last option to Pull-Away the battery..!!!!! !!!
Insinuating a GPU Bug or what????