windows 7 oem. new parts in old box, mb, hdd, power supply, ram, running windows dvd boot from dvd. install halts on expanding files at 1-2% and requests the dvd that is already in the drive and will not recognize it. further twisting gets me 0003 and 0022 error codes which suggest upgrade errors. I have re-ordered boot priority in the bios from blank hdd to dvd with not much effect. any help?