White/grey screen with apple logo when booting 10.8.4 #iATKOS #ML2

Hello,



I have windows and mac installed on the same harddrive.



I tried to enable AHCI on windows 8 via Registry editor, but now Mac OSX is stuck on the bootscreen



(Everything worked fine before)







Motherboard: Asus P7P55-m



Cpu: i7 860



Gpu: Nvidia EN9500GT



8gb ram







Heres what happens if i boot whit -V



http://twitter.com/philmexico/status...816128/photo/1







I really hope you guys can help me :)