How to resolve phantom task links



I continue to be plagued by this issue in our Enterprise environment.
We are running Project Pro and Server 2003. When revising task
durations/work I have often come across a popup message which states
that a constraint upon another task is affected. This would suggest
that the task being revised is somehow linked to the task which is
referred to in the message. After careful review I find that neither
task acts as a predecessor or successor to the other. I cannot seem to
find any relation between the two tasks. I have checked the properties
dialogue for both tasks and don't know where else to look or how to
further diagnose/troubleshoot.

Does anyone have ideas about how to handle this???

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