Fedora 17 hangs on boot/Screen shifted

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http://forums.fedoraforum.org – Hi everyone, I've been trying to install Fedora 17 on my desktop, but can't seem to get past this problem(s?). Everything goes fine with the live usb and during the installation, but when booting the installed fedora the entire screen gets shifted seemingly at random (sometimes it just moves horizontally with the rightmost part of the image filling in on the left or the other way around, other times it just gets completely grey on the splash screen, I assume because the logo is too high/low...). It also usually freezes on the splash screen or shortly after, but a couple of times it actua (HowTos)