Intelligent Disaster Recovery (IDR) disk image error.

Hi,
I was creating an Intelligent Disaster Recovery (IDR) disk image through the IDR preparation wizard, when these errors have occurred:
Cannot open the file. <E:Program Files SymamtecBackup ExecIDRDisk4idr.sif>.
System Error Msg: The system cannot find the file specified.
OK

Could anyone please assist me how to go about this problem?
Thanks a lot.
