I've seen a number of users who have installed the crack and have had a black screen hang at boot time as a result. I myself was among them, when the chinese loader and orbit30's and hazar's all produced that same result. Unlike a non-working crack, where it seems that the machine's BIOS is at fault and there's no way around it with 7Loader, these types of failure can occur on machines which would otherwise work with the hack. I fixed my problem by doing a clean Win7 install, so the only thing I can blame it on is the partitioning(win7 didn't create a recovery partition when I had upgraded from vista). Another thing I noticed, was that the floppy drive spun one extra time than it normally does at boot, and the screen was flashing 'shades of black' as if when changing resolution. Maybe if we post all our experiences and symptoms and partition configurations together, we can find a cause and help Hazar build a workaround in his patch.