PC with windows XP installed. When I boot up the PC the bios selection pops up (which is the only way to get to the boot menu as F8 alone wont work) after the short routine (hardware check?) it hangs on a black screen with a blinking cursor in the upper left hand corner of the screen. I can hit "Del" to enter set-up at which point pressing F8 will load the boot menu with the available options being: Floppy, CDrom and HDD. None of these options work. I tried putting in the XP CD and booting the CD, it loads all the necessary components and just before starting up windows it blue screens (and says that a hardware error has occured and that it has shut down to prevent damage). On startup it reads "hard disk is not detected", but this has not prevented my computer from working in the past. I haven't ventured much into the Bios for fear of destroying everything (but I did change the boot priority menu from Floppy/HDD/CD to Floppy/CD/HDD). This has changed nothing and running the XP CD still has the same effect. Help would be greatly appreciated.