Yesterday I replaced the cdrw drive that came with the system with a liteon dvdrw drive, after booting into windows the first time no issues all drives show up and work in explorer, when I needed to restart the system and everytime now I get this error with the number of the drive changing each time. " drive 2 not found serial ata sata (0),(1),(2) . I have an optiplex 755 running bios version A22 unfortunately cannot get support from dell because the system is too old for them to allow me to pay for a contract with them, so how do I get rid of the message it always appears when it is doing pxe?