hi there, i have a current model macbook pro 13.3" running osx 10.6.2. it is my first mac and it is a great machine! however the standard 250gb hard drive is a little on the small side for me, so i purchased a 500gb hard drive as an upgrade. to get my data from the old 250gb drive to the new 500gb drive i used a borrowed diskjockey pro which copies the data across sector by sector to make an exact image - very easy! after using this tool i installed the 500gb hard drive and the machine booted up first time and works just like it did before. unfortunately, when i try to create a new partition in OSX's disk utility to take advantage of the extra space i get an error. it says 'partition failed with the error: the chosen file size is not valid for the chosen filesystem'. if i try to resize the existing partition to use up all of the available space i get a different error. it says 'partition failed with the error: mediakit reports partition (map) too small'. so at the moment i can't figure out a way of using the extra 250gb of space! it seems that this might be because of the way i copied the drive - because it copied everything off the 250gb drive sector by sector the partition table on the 500gb drive must think it is a 250gb drive?? indeed in the support section of the diskjockey website they say that it can be a problem and they offer a pretty straightforward method for fixing this with a windows machine... but nothing for a mac. grr, frustrating! but so easy to fix on a windows machine. sooooo.. can anyone help me please?? how do i fix up the partition table on this mac!?