>To simulate a list box, I use a dynamic backcolor in the grid to look like a highlight bar. When the bar moves to a new record the previous record should turn back to white. It does with the exception of the border around the record (horizontally). It is still the highlight bar color. I am using verticle bars only. Any ideas why the old color is sticking around?

What do you mean by verticle bars? Try refreshing the grid in AfterRowColChange()