Moving a replicated database (while a bad idea if you're *using*
replication) does not cause the problem you report. On the other
hand, if it's a replicated front end (front ends shouldn't be
replicated in the first place), then the linked tables may be
unupdatable except in the design master.

If you don't need replication, then see Question 10:

http://www.dfenton.com/DFA/Replication/index.php?title=FAQ

If it's a replicated front end, then you definitely want to remove
replication.

If the back end is replicated, and you still want to synchronize
with other replicas, then just moving your replicas around is a bad
thing (see the URL above, Question 5, for an explanation of why that
is so).