Having just installed a new SONY CD Rom, when I boot the computer it comes up a CONY 4$6!. I have the CD Rom set to Master and plugged into IDE2. When I set it to Slave and plug it into the same cable as the HDD is comes up as SONY 4811 (which is correct) I have changed the cables and the CD ROM to one of exactly the same spec and the same thig occurs. Any solutions please!!!