Expired notice inspite of having purchased Fences

I purchased Fences after the 30 day trial.  I downloaded the software and obtained the serial number which shows in my account.  However,  whenever I boot up my system - it keeps telling me my Fences Trial has expired and gives me a window to Purchase etc.  I have win7 with MS Office 2010.  How do I fix this?  It's irritating.Image may be NSFW.
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