Gerardo,
There was some bugs related to the Scheduler service and clusters in the
base 3.7.1 client.
see IC25014,26121
Perhaps you could try the latest fixtest at
ftp://ftp.software.ibm.com/storage/tivoli-storage-management/patches/client/
v3r7/Windows/v371/i386/single
Good luck,
Nathan E. King
Storage Solutions Specialists, Inc.
Office (210) 497-4143
Mobile (210) 861-2590
http://www.storsol.com