We recently purchased a 18 gig scsi hard drive to replace our old 13 gig ide. This is a NT 4.0 sp4 running nothing but Backoffice with exchange 5.5 with about 40 mailboxes. I installed the scsi, booted to dos, used ghost to copy the ide to the scsi. After the copy, I disconnected the ide and the scsi booted fine, but I got errors about the information store not being able to start. Unfortunately I did not write down the specific errors, since i had to get the server running "ASAP" I just plugged the ide back and unplugged the scsi. Can I try this again in a different way, and have the exchange not complain? Is there something that I have to "prep" or do afterwards? What gives? Thanks for your help. (I do have complete daily backups)