I'm hitting the following error when running a program which calls OCIAQEnq. Anybody got any ideas what would cause it. The version of Oracle is 9.2.0.5.

OCI-21500: internal error code, arguments: [kocgor077], [], [], [], [], [], [],]
Errors in file :
OCI-21500: internal error code, arguments: [kocgor077], [], [], [], [], [], [],]


----- Call Stack Trace -----
Error: stisini(),13 - Can't open /Disk0/app/oracle/product/9.2.0.5/bin/oracleEre
Error: ssdinit() failed 13
calling call entry argument values in hex
location type point (? means dubious value)
-------------------- -------- -------------------- ----------------------------

----- Argument/Register Address Dump -----



----- End of Call Stack Trace -----

INFORM----UCEQOCI.c:0506:03/11/2004 15:15:46 > Error - OCI-21500: internal erro]

INFORM----UCEQOCI.c:0510:03/11/2004 15:15:46 > Error - OCI_INVALID_HANDLE