I had my son's Windows 7 users time limit set to 5pm but the NOF time setting set such that he was blocked all day.
Sure enough he tried to log in around 2pm a bunch of times and then gave up.
When I looked at the time log it showed that he had used the PC for 3 hours today when all he could have done
was log in some number of times and been refused.
I have the time log set to log the amount of active time....
I have noticed in the past that there have been occassions where thetime report will show useage time when I know
that he could not have used the PC for that length of time.
Al