A family of Microsoft relational database management systems designed for ease of use.
Victoria Cupcake,
What is the status date? Per the Project help, a task is shown as "late" If the timephased cumulative percent complete does not reach midnight on the day before the status date, then the Status field contains Late.
So, take a look at the Cumulative Percent Complete for each summary line (Task Usage view) and compare it to the Status Date.
Hope this helps.
Jonn