Try to manually sync with each member of the replica set.

You could also Google search for cannot open resolve conflict menu

Bob

Make sure you've got hidden objects and system objects displayed
(Tools | Options), and then check the MSysConflicts table. If it has
no records in it, then you don't actually have any conflicts. If it
*does* have conflicts, you'll need to decipher it by looking up the
GUIDs of the tables involved. You should also check to see if there
are conflict tables for any of your user tables. If you have a table
called tblPerson and there's a conflict, there will be a table
called tblPerson_Conflicts. That will have the data for the *losing*
record in the conflict. If the winning record is OK, then you can
just delete that table (or check all the records there before
deleting it).

Remember, the conflict resolver does nothing but offer an
opportunity to check that Jet resolved the conflicts correctly --
the conflicts have already been resolved. So, if worst comes to
worst, you can just delete the conflict tables and be done with it.

You should also try looking at other replicas, which may allow you
to resolve the conflicts.

Another thing you might try is to open the conflict resolver
directly and then open the replica you want to look at. The default
location for the conflict resolver is:

C:\Program Files\Common Files\Microsoft Shared\Database Replication

and the conflict resolver is called WZCNFLCT.EXE.

If you run it, you'll get the opportunity to point it at a
particular MDB.

Report back to us on what you find and then we can go from there.