A Revolution in Education
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Permalink Reply by Habib S on June 8, 2011 at 12:53pm Hey John,
Have you tried creating a new Notebook file and typing the formulas with the subscript to see if this would happen on newly created files?
If this works fine, i suggest copying everything to a new file and saving it. It could just be a corrupt xml file for the files you're using.
Habib
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