Sales Orders with Zero balance and bad Sales Tax information

SUGGESTED

I have 2 clients and the only thing in common is that this is happening since the Year-end IRD.

One is on Version 2013 and the other Version 2014.  

If they change a line on a Sales Order the totals go to zero and print zero.  I have verified that if we change the Sales Tax code for the order and change it back, this corrects the totals.   I have run the Sales Tax Recalculation utility at both sites and they still encounter the problem.

Any ideas?