If there is a problem with the account history you do not need to perform a full nvreorganize. You can use Database Utilities > Reorganize > Account History.
Can you explain how you are able to damage the account history in 2.16.3. If I can duplicate I will make sure it is fixed in the next update to NV2. Send me an email in regards to this to firstname.lastname@example.org.
Regards to All,