I was just poking around my plists (Don't ask!), and I found that a new TurboTax plist was created while I was speaking to the TT tech, right about the exact time that my problem resolved itself, and I wonder if it had anything to do with the resolution? Does it mean anything to you?
com.glancenetworks.Log.plist:
<?xml version="1.0" encoding="UTF-8"?>
<plist version="1.0">
<dict>
<key>Directory</key>
<string></string>
</dict>
</plist>
