>>I've got a UDF called S2MS() sitting in a procedure file which converts seconds (numeric) to a formatted mm:ss string. >>I had a grid in a form and one of the columns had S2MS(Duration) as the control source. It worked just fine. >>I moved this grid to a new form, and now the grid comes up blank (but with grid lines and headings). If I remove the S2MS() function from the column and just put in "Duration" it works normally, but of course my seconds are unformatted. >>Any ideas as to what's happened? >> >>I've had this sort of thing several times with different "calculated" columns and I'd love to know what's going on. > > >Hi Devid, >Are you playing with Grid's rowsource or trying to change Datasession? >this could blank out grid's definition >Jayesh > Sometimes, I (and another developer) have had trouble copying a grid and then changing a piece of info within the grid. Sometimes that piece of changed info just doesn't take. The only way around it seems to be to recreate the grid from scratch. I also wish I knew why we have to do this, especially on big grids.