I installed iAtkos without problem and if I try to boot without any flags it stays at the apple logo. If I boot with -v it just displays some text and then goes to a grey screen which just stays there. With -x passes the Apple logo, but stops at the grey screen. Please help. If you need an image with -v I'll send it, just ask.

CPU: Intel i5 3470 3.2Ghz

GPU: Nvidia GeForce GT 640 2gb

Motherboard: MSI H61M-P31 G3

RAM: 8gb