Spent about 3 hours scratching my head over a friends computer this evening. He had no software with his CDR/W, so took my oem NERO 18.104.22.168 up with me (works fine on my machine). His runs XPhome on 512Mb RAM, MSI6390 mobo, 110Gb IDE Hard drive, 16/40 DVD ROM and 52/24/52 CDR/W with Athlon 2400+ Everything runs ok, although defrag takes an age to analyse the drive and it's only 15% used. Installed NERO no problems, but when opened it can only find a virtual drive, it doesn't detect the CDR/W. This is in Wizard and Express mode. Can write ISOs to hard drive but cannot burn them. Drive reads CD-R and CD-R/W with no problems. I'm stumped, anyone out there got any clues? HDD is primary master, opticals are both on secondary, can't remember which is master. Did try uninstalling and reinstalling twice but no difference. Cheers for any help here, I've found it very useful with some of my problems in the past just surfing the archives!