>In the Grid AfterRowColChange Event, you can put a code like this:
>
>if ISRLOCKED("ALIAS")
> This.Parent.Page2.Enabled = .F.
>endif
>
>OR
>
>This.Parent.Page2.Enabled = !ISRLOCKED("ALIAS")

Thanks for your response, Mauro. I'll be using the solution that Gregory Adam gave me.

Alex