I have now solved the problem with

FOR EACH o IN oCollection
  CLEAR RESOURCES
  * .. code block
ENDFOR

This is a fairly drastic solution I would have thought, but it seems to work without any side effects.

This leads me to add to the vfp wish list some clarification in the next lot of documentation for the differences between

CLEAR RESOURCES
= SYS(1104)
RELEASE eVar

... and any other memory altering commands.

J

>Hi John,
>
>Just a SWAG, can you try Sys(1104)?