Gridview does not enter SelectedIndexChanged event

[furrybaer]

I can not get inside my SelectedChangedIndex event for my Gridview on the postback. ASP.NET 2.0, using a Master Page. It is a Search page. The user enters some text, clicks Search, then I populate the Gridview with a DataTable object. I have a Simple Select Command Column using a Linkbutton. The Page posts back to the server, but never gets in my debug code. HELP????

Thanks