Hi, I am attempting to reinstall windows xp home on my mom’s Dell 740 optiplex computer with the Dell reinstallation CD that came when unit was purchased. All her files were copied to a flash drive & no need to recover data. Have done this in past without any problems but this time I can’t seem to get beyond the boot menu. When I boot from CD/DVD/CD-RW Drive the screen goes dark and must restart and then access the boot menu with F12 or F2 for the setup menu. Have some screen shots attached if any help.