4.3.4 Upgrade on Mac OS 10.9 Yields Win 7 Activation Issue

[bfr2u]

After upgrading VirtalBox 4.2.8 to 4.3.4 on my 27-inch, Late 2009 iMac running OS 10.9 Mavericks, Windows 7 Professional requested to be activated and failed activation even though it had successfully activated when I initially installed 4.2.8 several months ago. Any assistance would be appreciated. Also when completing my profile with required info, I did not have a clue how to answer the request for the version of VirtualBox. I answered Debian in order for it to accept the submission. Any help with that would also be appreciated.

Thanks, Boyd