When I try to install Ubuntu the installation process goes fine, till it reaches the end and it through this error message "? kthread_freezable_should_stop+0x60/0x60" and it freezes the whole installation and I have to hard reset my laptop to reboot.. My guess is my GPU is not being recognized or something.

My hardware:

AMD athlon x64

Ubuntu 12.10 32 bit

ATI Radeon X1200

WUBI installation.

Anyone knows how to solve it?