1. Is your column bound to its controlsource?
2. Have you tried setting the column to readonly?

>1) Create a table with 4 fields.
>2) add 4-5 records
>3) Create a new form using vfp6 base form.
>4) Add a grid
> a) columncount = 4
> b) recordsourceType = 0 (table)
> c) recordsource = 'your new table from above'
>5) Set grid1.column4.text1.readonly = .t.
>6) Save and run the form
>7) Click into column 4
>8) Change the record? Shouldn't this be readonly?
>
>What gives? Am I missing something here?
>
>Robert