Hi Kemical, thanks for that but i have tried that several times to no avail. I think i may have sorted it though. I booted my machine from the W7 install disk this morning and ran the repair mode, running just the Start up repair, then rebooted. Itunes fired straight up and i could play music. I then got a message saying that there was a new version 9.0.3, so i installed that. Itunes then stopped working again!!!!! Repeated the repair mode and hey presto itunes is happy again. Not sure why, but it works for me. Cheers