CalvinHobbes and tr1kstanc3 - thanks for your help . This is what I have managed to find out (from Device Manager ) . HD is WDC 1600JS60NCB1 - doesn't say if it's IDE or SATA . The CD/DVD entry has 2 . One with a red cross is Generic Stealth DVD SCSI CD-ROM . Second ( no red cross ) is HLDTST DVD ROM GSAHION SCSI . From XP , dvd's can be read and run . Am trying to boot mtest and WDC Diagnostics .