Successfully installed on:
Asus Maximus IV Z68@3304 patched bios & MSI 6870
Was having same issue with white screen & cursor in installation step. The only way for me to fix this issue was removing ATI6000.kext from USB and moving it again on instaled ML in S/L/E.
No issues whatsoever beside:
few not working USB 3.0 ports (using kext from multi...)
and im unable to boot from hdd, the only way is using whole time USB stick (same bootloader on USB/HDD, same org.chameleon.Boot.plist), tried many bootloaders.
Method with modding ATI6000 doesn't work for me, at last not in USB's S/L/E - its actually fulled with dev id's.