I installed ML and re-booted with my UniBeast USB and then loaded up OS via my HDD which now has ML on it. Ran MultiBeast and set the settings the same as in
http://www.tonymacx86.com/golden-builds/73112-updated-storks-thunderbolt-build-i5-3570k-ga-z77x-up5-th-gtx-650-ti-mountain-lion.html
Finished MultiBeast install and re-booted via the HDD this time, Chimera screen shows quickly followed by the usual grey Apple logo'ed boot screen, then white screen.
What have I done wrong and what should I do to rectify the problem? I was so close to completing the ML install. When I have a working OSX 10.8.2 I can then run the Migration Assistant to transfer everything from this iMac. Please help, anyone