RadGrid not binding

[Perry]

I have an unusual situation I have a rad grid set with AllowSorting=True.  On my columns I have set the SortExpression to equal the column UniqueName.  When viewing the results I see my records, but when I click on a column header to sort the data, the entire radGrid disappears.  It looks as if the radgrid is no longer bound to the data.  I am also having this same issue when I click on the edit images for a row.

Any Idea why This is happening?

[Perry]

As an update to my issue above I am seeing the same problem if I click on the page bar to select the next page of data or if I change the page size and click go. Maybe I should blow it all away and start from scratch?