"An unexpected error occurred" then "I/O Error 6" or "I/O Error 0"
Problem
When you open a presentation you see an error message like one of these:
An unexpected error occurred - I/O Error 0
An unexpected error occurred - I/O Error 6
Solution
These MS knowledgebase articles may help:
You receive an "I/O Error" or the subfolders are displayed as question marks or squares in Office 2000 programs
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