Hello, I've used the Server model guide to retrofit one schema's user. When I try to save the Server Model diagram it fails with:

ORA-01036: illegal variable name/number
RME-02126: Failed to bind cursor variables
RME-02124: Failed to execute SQL statement: delete from I$SDD_DIAGRAM_SEGMENTS where SEQUENCE <= :h_seq and SEQUENCE >= :l_seq and PARENT_IVID= :diag_ivid
The Server side is on Oracle8.1.6 and the client side is on W98 with Designer 6i Release 2.