UMAT error message

[mingxiu]

Can anybody help me out?
I tried to use UMAT, but alway have this error message,
I have no idea what is going wrong.
Thanks a lot!
Michelle
---------error message--------------------------------
Begin ABAQUS/Standard Analysis
Fri Sep 22 16:16:06 2006
Run /home/abaqus/6.3-1/exec/standard.x
ld.so.1: standard.x: fatal: relocation error: file /opt/SUNWspro/lib/libf77compat.so.1: symbol __f90_default_input_unit: referenced symbol not found
Fri Sep 22 16:16:06 2006
ABAQUS Error: The executable /home/abaqus/6.3-1/exec/standard.x aborted with error code 9.
Please check the .dat, .msg, and .sta files for error messages if the files
exist. If there are no error messages and you cannot resolve the problem,
please run the command "abaqus job=support information=all" to report and
save your system information. Use the same command to run ABAQUS that you
used when the problem occurred. Please contact your local ABAQUS support
office and send them the input file, the file support.log which you just
created, the executable name, and the error code.
ABAQUS/Analysis exited with errors
-----end of the error message-------------------------