I am asking if anyone has encountered something similar to this and if so they could elaborate on details. I am troubleshooting and just don't know where to look. Application is vb.net with oracle backend. Up until yesterday the linkbutton that would remove a record was working and the custom sort I have on the grid was working. All of my pages are using gridviews and yesterday those 2 events were firing and today they are not. The only change I made last night was I set a defaultbutton on an element in a usercontrol and the usercontrol sits with each of these grids in a contentpage. No other changes at all. I even took the defaultbutton back out to no avail. This development is fairly new to me. I 've been at it only a couple of months. What I need from the experts is how do I go about tracing where the problem is at when the event appears to fire and the page reloads but the sort and delete in the event does not fire.