>What have have tried doing is:
>
>FlexGrid.ColIsVisible(2) = False
>
>But this generates an error......


This seems a bit vague, what error does it generate ?

A quick try of what you say brings up the error, "assignment to constant not permitted".

The VB help says that ColIsVisible returns a value (i.e not that you can set a value) so this seems to fit.

I don't use the MSFlexGrid so I could be wrong, but I don't thing you can make the columns visible and invisible as you want, the ColIsVisible function tells you if the column is currently visible, due to horizontal scrolling, not because it can be made invisible.