Maxdb 7.9 SQL Question (+) operator

Hi, I am slightly stumped on an sql query that ran without problems on

maxdb 7.6.027 for many years, but now returns error

SELECT    v.id, v.modul, v.version, m.rechte, m.rechte2, m.rechte3, m.rechte4

FROM    versions v, menurechte m

WHERE    v.id >= 0 AND v.id = m.id ( +)

AND m.login ( +) = 'SCHWARTZ'   

The database server (7.9.27) runs under linux and the application is run on a

WIN-XP-client, unsing the original maxdb 7.6. ODBC driver.

Is there a compatibility setting that will allow me to execute the join syntax above

on a 7.9.27 server?

Any hint on how to deal with this would be greatly appreciated, as I cannot modify the

client (XP) application.