ubuntu 12.04 live cd freezes when trying to install on hp pavilion dv6

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http://askubuntu.com – I first erased the recovery partition to nake some space i boot with the ubuntu 12.04 live cd it asks me if i want to install or try ubuntu with both options is the same result, the screen goes black and the ubuntu with the white and red dots appear and move for a while, then stops and there's nothing I can do. my laptop is a hp pavilion dv6 thanks for any help (HowTos)