...50Bus error 'softwareupdate --download'

[Karl Rink]

Has anyone encountered "...50Bus error" with 'softwareupdate  
--download' ?

apple:~ root# softwareupdate --list
Software Update Tool
Copyright 2002-2003 Apple Computer, Inc.

Software Update found the following new or updated software:
! iCal-1.5.2
iCal, 1.5.2, 7852K [required]
! SecurityUpd2004-01-26Pan-1.0
Security Update 2004-01-26, 1.0, 8000K [required] [restart]
! SoundtrackUpdate1.2-1.2
Soundtrack 1.2, 1.2, 30860K [required]
* AirPortSW-3.3
AirPort Software, 3.3, 8752K [restart]
apple:~ root# softwareupdate --download iCal-1.5.2
Software Update Tool
Copyright 2002-2003 Apple Computer, Inc.


iCal: 0...10...20...30...40...50Bus error
apple:~ root#
apple:~ root# softwareupdate --install iCal-1.5.2
Software Update Tool
Copyright 2002-2003 Apple Computer, Inc.


iCal: 0...10...20...30...40...50...60...70...80...90...100
Optimizing system performance. This may take a while...
Done.
apple:~ root# softwareupdate --list
Software Update Tool
Copyright 2002-2003 Apple Computer, Inc.

Software Update found the following new or updated software:
! SecurityUpd2004-01-26Pan-1.0
Security Update 2004-01-26, 1.0, 8000K [required] [restart]
! SoundtrackUpdate1.2-1.2
Soundtrack 1.2, 1.2, 30860K [required]
* AirPortSW-3.3
AirPort Software, 3.3, 8752K [restart]
apple:~ root#


------------------------------------------------------------------------ 
---
OS type:        Power Macintosh ppc7400
Kernel:         Darwin 7.2.0
Processor:      1 500MHz PowerBook3,2
Memory:         536870912       Swap: