CSV name - mount point has changed?

Hi

I have setup a 4 x node 2012 HV HA Cluster.

I have created 4 x CSV volumes

CSV-1 mount point c:\ClusterStorage\Volume1

CSV-2 mount point c:\ClusterStorage\Volume2

CSV-3 mount point c:\ClusterStorage\Volume3

CSV-4 mount point c:\ClusterStorage\Volume4

This was created in Dec 2012, at some point in the last 6 months the mapping has changed to:-

CSV-1 mount point c:\ClusterStorage\Volume1

CSV-2 mount point c:\ClusterStorage\Volume2

CSV-3 mount point c:\ClusterStorage\Volume4

CSV-4 mount point c:\ClusterStorage\Volume3

Everything is working ok, how do I re-create the original configuration? without causing me 'any pain' as its a production environment?