🚀 go-pugleaf

Hi.

We have an existing installation of IB Server 6 which I was updating to incorporate some 
new views. When testing I ran across the following problem.
I have a view, which results depend on the existing of matching data in another view, like 
this:

SELECT Locaties.LocatieOID, Locaties.Verwijderd, Locaties.Naam, Locaties.Tellergebruik, 
Locaties.Tellersaan, Klanten.KlantOID, Klanten.Naam, Adressen.Plaats
FROM ((Locaties INNER JOIN Klanten ON Locaties.KlantOID = Klanten.KlantOID)
                INNER JOIN Adressen ON Locaties.AdresOID = Adressen.AdresOID)
WHERE
    (EXISTS (SELECT TijdelijkOID FROM Tijdelijk
             WHERE (Tijdelijk.LocatieOID = Locaties.LocatieOID)))
    OR
    (EXISTS (SELECT LOCATIEOID FROM VIEWLOCAUTMCOUNT
             WHERE VIEWLOCAUTMCOUNT.LocatieOID = Locaties.LocatieOID))

This query works, as long as i remove the EXISTS(....) on the ViewLocAutmCount from the 
query. If it is used, even trying to explain the query (retrieving the plan) crashes IB!!
To explain the query (or what I'm trying to do): I need locations, but only those that 
have either a reference from another table (Tijdelijk), or where equipment is placed 
(ViewLocAutmCount, which lists the number of appliances placed at a location).

Anybody can show me what I'm doing wrong? Can't IB 6 handle referencing views from within 
views??
Tx.
...Arjan...