Dear Fomin,
Please review the SAP note on trobles shootgin DBACOCKPIT issues :
SAP Note No. 1605680 SYB: Troubleshoot the setup of the DBA Cockpit on Sybase ASE
Particularly install the latest version of SAP note 1619967 for SAP Basis 7.31 ot obtain all the latest fixes for DBACOCKPIT.
Also, please check the ODBC driver version you use and the SAP DBSL library version.
ODBC driver should be 15.7.0.508 at the latest DBSL pl.
(compare SAP note 1812590 - which I think may apply)
HTH
Tilman