I am trying to set the bios so the cd rome is frist boot option.I hit f2 the bios comes up i move arrow to boot dev. hit enter. says to select boot dev.with arrow up or down key,i have 3options,1st ,removable dev . 2hard drive dev.3atapi cdrom dev. says to press enter ,use arrow to select cd rom.,hit arrow to hi lite it.it says to hit f 10 to save and exit. i have done this a few times but it go.s back to the same as it was. and will not boot from the cd. the only thing that may be wrong is i can.t move it up to the top.i tried diffrent keys , it stays at 3. i hope you can give some help on this. .I would like to try and reinstall xp,but when i put in the cd,it says i have a newer version on it.sp3, but if i want to put the older one on i have to re boot to the cd. i have a sp 2 desk i can to start updates with. i am trying to learnhow to do this. thans for any info . A noob xbill