Hi,
It sounds like your database works as long as it is in a trusted folder, not outside.
If that's the case then it is due to a bug in the Office build 14827.20158 that is discussed in several threads here and hundreds everywhere else.
As of today you can try to go to File - Account and choose to Update Now as there is a new build out 14827.20192 that should fix the bug. Please report back if it does the trick for you as we need more feedback that it works.
Servus
Karl
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