I tried with this method and I'm installing right now, just taking forever to download
updates as it's installing. But so far so good.
Boot from dvd or cd, than as soon that you get the little logos at the bottom of the screen (box or keyboard like an little man logo) Press the ESC key, than it will bring you to the main menu, then press f6 and choose by pressing enter the option nomodeset than esc to go back main menu. Then just type fb=false video=vga:off Then Lunch the Try without installing mode. It will lunch. Then when your in your desktop, set up your network (rj45 or wifi) and double click on the Install icon.
I will see what it give's me.
Still installing as I'm writing this.
Hope, if ever it works, that I'll be able to install the proper Nvidia driver for my card (GT240 1gig ddr 5).