Sounds like you already discovered the solution: CLEAR ALL. Since VFP loads vcx in memory, I don't know of a better solution. Let me know if you discover one.

>Hi folks,
>
>When using SourceSafe, I continually get the following error when I try to check out a parent .vcx immediately after editing a child .vcx:
>
>Source control cannot operate on open file:
>whatever.vcx
>Close the file & try again.
>
>Now, I'm issuing a CLEAR ALL after editing a child & moving to its parent, but it's a little annoying.
>
>Any suggestions on how to remove this problem?
>
>Cheers,
>
> Andy Crawshaw