Click on a Column Heading to sort the entries in the list.
Once sorted, the icon will be displayed against that column.
Clicking on the same Column Heading will sort the list in the Descending Order.
NOTE:
By default the problem list will be sorted on the basis of DOS in ascending order. Sor the list for any column heading available by simply clicking on it.
NOTE:
User can sort the problem list for the most recent activity in problems (for instance, User wants to see entries based on most recently updated comments to address them)