NTBackup errors and closes as soon as scheduler used

Question

On several of my 2k3 Servers, R2, SP2, I am trying to set Scheduled Tasks to run my NT Backups.
In using the Wizard, or not, in Backup, I get to the
"Backup Wizard - When to Back Up" screen, with the "later" radio button highlighted "Job Name" is blank, but "Start Date" is greyed out.
If I put a name in for the backup job, then click either "Set Schedule" or "Next", NTBackup closes down with no warning.
Event Viewer shows the following:
Event Type:    Error
Event Source:    Application Error
Event Category:    (100)
Event ID:    1000
Date:        5/26/2010
Time:        11:28:38 AM
User:        N/A
Computer:    ARNOLD
Description:
Faulting application ntbackup.exe, version 5.2.3790.3959, faulting module ntbackup.exe, version 5.2.3790.3959, fault address 0x0001ccc9.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 41 70 70 6c 69 63 61 74   Applicat
0008: 69 6f 6e 20 46 61 69 6c   ion Fail
0010: 75 72 65 20 20 6e 74 62   ure  ntb
0018: 61 63 6b 75 70 2e 65 78   ackup.ex
0020: 65 20 35 2e 32 2e 33 37   e 5.2.37
0028: 39 30 2e 33 39 35 39 20   90.3959
0030: 69 6e 20 6e 74 62 61 63   in ntbac
0038: 6b 75 70 2e 65 78 65 20   kup.exe
0040: 35 2e 32 2e 33 37 39 30   5.2.3790
0048: 2e 33 39 35 39 20 61 74   .3959 at
0050: 20 6f 66 66 73 65 74 20    offset
0058: 30 30 30 31 63 63 63 39   0001ccc9
Link to http://go.microsoft.com/fwlink/events.asp. gives no information.
Have tried deleting all scheduled tasks then stopping and starting the Task Scheduler to no effect.

Answer 1

What if permissions are set as specified?
C:\Windows\Tasks CREATOR OWNER:(OI)(CI)(IO)F
                 BUILTIN\Backup Operators:(special access:)
                                          READ_CONTROL
                                          SYNCHRONIZE
                                          FILE_GENERIC_READ
                                          FILE_GENERIC_EXECUTE
                                          FILE_READ_DATA
                                          FILE_WRITE_DATA
                                          FILE_READ_EA
                                          FILE_EXECUTE
                                          FILE_READ_ATTRIBUTES
                 <Account Domain not found>(special access:)
                                           READ_CONTROL
                                           SYNCHRONIZE
                                           FILE_GENERIC_READ
                                           FILE_GENERIC_EXECUTE
                                           FILE_READ_DATA
                                           FILE_WRITE_DATA
                                           FILE_READ_EA
                                           FILE_EXECUTE
                                           FILE_READ_ATTRIBUTES
                 BUILTIN\Administrators:(OI)(CI)F
                 NT AUTHORITY\SYSTEM:(OI)(CI)F