For future reference of anyone else affected by this sort of issue:
Aergis was having trouble with the Radeon card described above while playing Skyrim, and so installed a third-party driver set to patch the issue. This patch knocked out all GL-based applications, including Blender and ENIGMA.
I encouraged Aergis to install the latest version of AMD's driver for the card, as it will likely fix both issues.
If you have this problem and have not tinkered with your graphics, post a new thread.
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