Backup Schedule Crashing for TSM client 4.1.2.18

Hello TSM administrators,

Has anyone seen this happening?

when I do "q event *  * " status shows up as " ? " for scheduled backup
node. I see this on selected few nodes.  Both happening to WinNT and
Windows 2000 client boxes.

In dsmsched.log it has

08/16/2002 01:36:05 ANS1448E An error occurred accessing NTFS security
information

 in dsmerror.log   contains bunch of these messages

08/16/2002 01:36:04 Attempt to free unknown pointer. Addr 009938B4, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009938B4, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntfileio.cpp, Line 7320
08/16/2002 01:36:05 Attempt to free unknown pointer. Addr 009A05E8, File
ntf

Client version:
Platform: WinNT
Client OS Level: 5.00
Client Version: Version 4, Release 1, Level 2.18

Server version:
Storage Management Server for AIX-RS/6000 - Version 4, Release 1, Level 5.0
running AIX 4.3.3

Examined the permission for the drive, it's set to full everyone.   Also
this occures sometimes.
Thank you in advance for your assistance.

Sung Y. Lee
E-mail  sunglee AT us.ibm DOT com