I formatted my Hard disk & installed Windows Xp & Fedora core 8.Now when I start fedora the services are loaded & after that it presents me with a black screen that says local host login.Why it is not booting into GUI.i tried logging typing login as root and password as root its says login incorrect.and i also tried logging as root and password i set while installation i get the same answer login incorrect..what may be problem...??? plz help..??