Thanks Karen, the everymac site is one of my favourites - very handy indeed when it comes to old macs. I did a bit of web surfing and find that a tibook will recognise a 120gb hard drive. If you have a larger one it will still only recognise 127 gb. http://discussions.apple.com/thread.jspa?threadID=1189322&tstart=30 I'm still interested to hear about 10.6 on the tibook -- regards Clare ************************************************ Clare O'Farrell email: c.ofarrell at qut.edu.au website: http://www.michel-foucault.com ************************************************