Bootwiz imaging - Ghost wont launch

Hey all, having an imaging issue in my environment, where once the image is chosen, Ghost doesnt launch for a long time, if ever. The Altiris job fails with: 

ErrorMessage: Exception has occured in File NetShare.cpp at Line No 134. Type of exception is GeneralError. Error is Default Message Exception in CNetShare. Error Description is utilCNetShareDoMapping. Value of Windows error code = 53 and message is The network path was not found.

Any ideas? Thanks!