I have installed OS X 10.5 with iatkos v7... on my Dell studio 1555.
Everything went fine untill i should boot for the first time, got the apple and the spinning weel, and when that was done the screen whent grey, with some stripes random around the screen. Then many stripes appeard and i think it should have been the "loading" mouse, you know; the red, blue yellow green weel thing. and the stripes "moved"

But i didn't get further than that, stuck at some grey and colorfull screen, but after a minute or two some music started to play :P maybe the welcome video? but i couldnt see anything else than the grey screen :S

and it seems i can't boot into W7 anymore ether, and cant start from a cd rom -_-*
But uses a USB stick to install OS X so that isn't a priblem atm...

Edit: Ive tried to start in -x mode 100 times now, and i finally got trough.. so now i can see things, but are still stuck at identifying keyboard... any solutions?