I'm running a Power PC G4 with Tiger 10.4.11. I recently had the old 40GB hard drive replaced with a 150 GB drive and copied all the contents of the old drive onto the new one. Now, whereas Disk Utility shows that I have a total capacity of 149.1 GB and on highlighting HD it shows a capacity of 148.9 GB under available it shows only 16.4 GB and under used only 23.4 GB. If I look under partition it again shows 148.9 GB as available. The drive has not been partitioned - there is just one grey panel showing. It is as if my original total of 40GB has not increased at all, although the additional capacity is being recognised to some extent. I would be more than grateful if somebody could tell me how I can get access to the extra space - thanks in advance and even more thanks to come when I succeed.