System error when connect to Sybase

Hi All,
    Have you met the following system error :
Error message "Invalid Thread ID 00005" will appear occasionally  when
connect to Sybase system 11. After the system error occur, the operation
system is halt.

My configurations are :
    Delphi 4.0
    BDE 5.0
    Intersolv Sybase ODBC driver
    Sybase system 11

Regards,
William