Search Results (IE9): text in a row is sometimes shifted right by a column

When using a non-default column layout in Internet Explorer 9, a row is sometimes displayed with its text shifted over by a column - e.g. the Type field will contain the expected symbol, but the Key field will be empty and each column will contain the previous column's text (e.g. the Summary text will be displayed in the Assignee column).

The issue gets triggered fairly regularly by clicking on different column headers to select which to sort by.