How to verify usage logs?

Hi,

Per the license reporting page, it looks like we came within 3 minutes of exceeding our licenses (i.e. We just got by without incurring a charge!).  When examining the usage logs, I see that one of our computers which is located at an employee's home, reports 19 hours of continuous usage.  When I talked to this employee, she says that each night she quits Microstation and shuts down the computer.  She does not remember accidentally leaving it on three days ago.  So per her statement, there is little to no chance that this log is correct.

Is there any way of verifying the usage logs? 

Also, the Term Licensing Fact sheet says, "Usage is determined by counting the total number of unique machines that access an application during each 10-minute interval throughout the day."  How is it logged if a computer goes to sleep, hibernates, etc.?  During that time, the neither the machine nor the user is accessing Microstation, even though the application may not have been closed.

--Thanks,
--Robert