i have an old p4, i cannot get into windows at all, and im confronted with the screen that gives you the options: safe mode safe mode with networking safe mode with command prompt last known good config start windows normally ive tried all of them, and the computer will restart regardless on what i choose. what i want to do is boot from cd so i can reformat. but ive tried everything in the bios to set the cd as priority one. it WILL NOT BOOT FROM CD. it goes straight from POST to that screen. i have tried different copies of XP, but no luck. ive removed everything except the keyboard, monitor and power cable on the pc, no external storage devices attached. i reset the cmos, nothing there. i simply cannot get it to boot from cd, so i cannot reformat any suggestions?