I hope your reference below to the report designer meant form designer :>) A simple THISFORM.Command2.Enabled = .T. in the IAC of the listbox should do it. Use the .init of the form to set the initial state as required. Or in the designer if it suits you.

>Hello Jim,
>>Try using the InterActiveChange of the listbox.
>
>OK, that's the where, but I'm also unsure as to what to place there.
>I've tried setting enabled to .F. (for Command2 and Command3) in the report designer, but when run, those buttons are still functional. So do I have to disable them in the Init, and then enable them in the InterActiveChange ?