My computer will not boot from a cd... i have set the options to only boot from cd and nothing else and it gives me a PXE ROM error then it says please insert a system disk. The disks I tried were windows vista and windows xp pro. Motherboard: MSI P695 Neo, Processor 2.13 core 2 duo E6400, Graphics: Nvidia GeForce 7300 GT, 1GB Patriot RAM. I have booted from a cd before when i was installing xp for the fist time on my hd a couple of months ago. I don't know why its not working now, any ideas?