On a MacbookPro 7,1 and the RC release (ubuntu-10.10-rc-desktop-amd64.iso).
Holding option and selecting Windows CD works fine and I was able to proceed with installation.
Selecting EFI Boot shows GRUB, but selecting try or install shows a black screen.
However, adding acpi=force, noefi and video=efifb shows similar error to comments 8 ant 9
On a MacbookPro 7,1 and the RC release (ubuntu- 10.10-rc- desktop- amd64.iso) .
Holding option and selecting Windows CD works fine and I was able to proceed with installation.
Selecting EFI Boot shows GRUB, but selecting try or install shows a black screen.
However, adding acpi=force, noefi and video=efifb shows similar error to comments 8 ant 9