cant get to installer screen

hi,

i have a dell inspiron N5110 laptop, running a i3 sandybridge 2310 M at 2.1ghz and no dedicated graphics card, i have a currently installed windows 7

i got the lion to boot, it starts the apple logo but somehow i am not able to reach the installation screen. I have tried the CPUS=1 and have had no success... plz help

Try entering -v to turn on verbose boot mode. Then take a photo of your screen when the bootup to the Lion installer freezes.

Also, you could try entering some extra boot flags.