I tried that but it didn't work. I quit VFP, rebooted the machine (I've had instances where it would leave a file shared even after I closed it and tried to reopen EXCLUSIVE), ran VFP, SET EXCLUSIVE ON, opened the project and then the Database, and still no access to RI. Could it be that something in the RI code has gotten messed up and so it won't open it anymore? Could I strip all the code out and then rerun the builder?

>VFP 3 is very fussy about exclusive use of the DBC before you can see the RI settings/builder. Are you sure you have exclusive access? If possible, close the project and everything else then reopen the DBC.
>
>>I have a project I have been working on for several months in VFP 3.0. Today I went to look at the Referential Integrity settings and the option is grayed out from the menu. If I double click on a relation and then click the Referential Integrity button, it flashes but the builder is not displayed. Any ideas what has happened? Thanks,
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>>Shane