Oracle Database Discussions

hi

ihv to insert data form one database(9i) to other(8i) and im using windows xp

i hv issued

insert into B_RECEIPT@ICT.US.ORACLE.COM
select * from B_RECEIPT;

bt it gives error

ORA-02068: following severe error from ICT
ORA-00600: internal error code, arguments: [25012], [2], [4], [], [], [], [], []

it technique was working 2days back bt recently its not working

alert log contains
Errors in file D:\Oracle\admin\ICT\udump\ORA00492.TRC:
ORA-00600: internal error code, arguments: [25012], [2], [4], [], [], [], [], []

i cannot understand anything of .trc

please help me to solve it

thanks in advance