Ok, so I need to reformat for various reasons. Anyways, I cannot boot from CD. If I go into my BIOS for my motherboard (ASUS P5K SE) and change any settings so that it isnt at stock settings, I get a message saying "OVERCLOCKING FAILED. PRESS F1 TO ENTER SET-UP. PRESS F2 TO LOAD DEFAULT VALUES AND CONTINUE." So if I press F1 and change anything, I keep getting this message. If I press F2 to load default stuff, the computer thinks that I have a floppy drive, and makes it the first boot device. The second is my HDD, the third is ATAPI CD DEVICE (whatever that is) and the 4th is my actual disc drive. I put my XP cd in while in Vista (so I could try to reformat) and it won't let me. I plan on putting XP on, then upgrading since I have the Vista Home Premium upgrade disc. Any help is appreciated. Thanks in advance!