Nope, solved it - it was the screenresolutions fault. It was set to high since I run it on another screen usually. When disconnected from that screen the laptop won´t run the game since it has poorer resolution.
Or, actually the game runs perfectly. When my network cable is plugged in that is. Once I remove it and try to boot the game it merely starts with the first image and then goes down again within seconds. I´ve tried to make the game boot using wireless network and even mobile modem but the same...