F12-Beta-i686-Live has some bugs

[Bruno Wolff III]

On Sun, Nov 15, 2009 at 02:53:42 +0000,
  Ikem Krueger <ikem.krueger at googlemail.com> wrote:
> I booted from cd and I was left with a black screen. When I switched
> to a console, I got:
> 
> render error detected, EIR: 0x00000010
> [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
> 
> I guess the kernel is guessing my graphiccard wrong. Usually I use
> "i810" or "intel" in Xorg.
> 
> Workaround is to boot with "nomodeset". (That isn't even working with
> the LXDE Spin. :S)

There were significant fixes to video between Beta and the release candidates.
The release (isos will be out Tuesday) may work better for you.