Not sure if this is a new problem in 4.2 or not as I haven't noticed it until now, but when you are looking at the various tabs of information for a computer, the line that shows when it was last scanned does not have the date in the same format that the website is configured with.
Other dates on the website seem to be in the correct format though. (see attachments)
eg: I have my website configured for dd/MM/yyyy
The line shows:
Last scan at 10/12/2011 4:49:35 PM took 0.36 seconds, waittime is 1 days
or on the Event Log tab, the grey bar at the top has 10/13/2011, but each logged event is correct in showing 13/10/2011.
Regards,
Paul.