Norton Ghost 15 Error E1AD5A19

Running Ghost 15 on XP SP3 computer.

 

Trying to a do one time complete backup to external USB hardrive.

 

When I use Ghost's Browse function to locate the external HDD and directory for my backup, I get he following error:

 

The Browse function will not work.

 

Error E1AD5A19  An unknown error has occured.
Object reference not set to an instance of an object
(UM1: V-0-429-23065)

 

If I create a destination directory using Windows and manually enter this address into Ghost destination address - all OK.

 

I have tried deleting backup history and reinstalled Ghost 15, but problem remains.

 

Interestingly I had this problem develop with a Ghost 14 installation on this same PC, so thought a new installation of Ghost 15 would solve my problem.  It originally worked OK with Ghost 14.  Something changed that is screwing up both Ghost 14 and Ghost 15.

 

Any ideas?