With our sample, we dont get any error. And as discussed, i needed to put hidePadColumn option based on whether the webgrid has a scrollbar or not. You remember that right? Now for our sample, there is no error. As i said to reproduce the error i have to move from one webgrid page to another by clicking a button, then webgrid will produce an error page(this error page is a common error page shown by webgrid when some error occurs inside webgrid). I cant do a sample for you right now, however i can send u a sample may be day after tomorrow(as i cant access my sample that i ve created right now). However u can do a sample by just adding another webpage to our sample and then add a button to first page to redirect into second page. However to get the error, the clicking should be done fastly, so that the refresh wont be completed within that time, and webgrid will pop up some error!...Hope this would help...

One more thing, You have given me the following code in a previous post above, as follows

function WG_Init(controlId) {

    var grid = ISGetObject(controlId);

    setTimeout(function() {

        var contentElem = grid.RootTable.GetElement(WG40.BODY, WG40.HTMLDIV);

        if (contentElem.clientHeight < contentElem.scrollHeight)
            grid.HidePadColumn = false;
        else
            grid.HidePadColumn = true;
        grid.RefreshAll();
    }, 10);
}

Of which i replaced RefreshAll() with Refresh() and no further changes. Now the problem is that if any user tries to navigate away from the page just on the moment as the page is loaded, then the webgrid will popup an error, for say more than 1 second, then the second page loads. Means within the unloading time of the first page the error is shown. The error will occur to all the pages where the above fix is applied. This is is due to the fact that within a timeout the grid is refreshed and before all the process is completed, the user is moving away from  the page and thus webgrid wont complete the process and throws an error. In short using grid.Refresh()(or grid.RefreshAll()) within a settimeout function is not at all good. Or is there any other event than Init of webgrid to apply the function. Or any other fix, so that i dont need to display the vacant space reserved for the scrollbar. Please reply ASAP.