I don't think it's the backside of his N900 that needs adjusting. His head, on the other hand....

- Edit -

Go to the multiboot threads, and the power kernel threads, and read. Your problem is only indirectly connected to h-e-n. Your problem is that you obviously aren't listening to the fact that with multiboot installed, there are special steps you have to take before you can boot with power kernel. If you can't figure out how to do that, you don't need multiboot, so my recommendation is uninstall multiboot (or bootmenu, or both if for some reason you installed those), THEN reboot, THEN reinstall power kernel again, and then reboot again. If you aren't willing to figure out how to make Multiboot load the power kernel, something there's plenty of information on, then you should just uninstall multiboot. And if you go that route, you should go through all of the above steps. If you don't do them, in that order, **** might still not work, and then everyone will be less happy.