Jeff, I wrote a mail and waited to do a last try and it now is. I always did what you wrote. Paul Moortgat On 10 Feb 2010, at 00:03, Jeff Carruthers wrote: > Paul: I'm not sue why the second internal drive isn't showing up as > GUID partitioned in System Profiler. I just checked and mine all do, > so it may be that the drive didn't get partitioned as GUID after all. > > I use Disk Utility, select the drive to repartition, select > Partition, change from current partition to 1 Partition, and then go > to the Options... button > and select GUID. and finally, Apply. > > Jeff