Different amount of tax calculated in invoice and printable invoice

[Parminder Singh Chauhan]

I am trying to use Gnucash for my cousins small bussiness. Everything is 
sorted but there is only one problem which I could not sort it out. I want to 
print out a invoice for a customer. There are nearly 20 entries per invoice. 
My invoice added VAT(tax) on all items. When I tries to print this invoice 
the amount of VAT calculated in invoice itself and printable invoice are 
different. I mean by 3 pences. I assume this may be due to  the different way 
of rounding of figures for VAT in both outputs. Is there any way or patch 
available for keeping the same amount in both places? 

-- 
Parminder Singh Chauhan