the shipping was calculating incorrectly for me to...it was doubling it.
replace:
Code:
<table width="100%" border="0" cellpadding="1" cellspacing="0">
<tr>
<td class="ProductPriceSmall">{$lng.lbl_total}: </td>
{* calculate grand total including shipping cost*}
{math assign="grandtotal" equation="minicarttotalcost+minicartshipping" minicarttotalcost=$minicart_total_cost minicartshipping=$minicart_shipping}
{* end of grand total calculation *}
<td align="right" class="ProductPriceSmall">{include file="currency.tpl" value=$grandtotal}</td>
</tr>
</table>
with
Code:
<table width="100%" border="0" cellpadding="1" cellspacing="0">
<tr>
<td class="ProductPriceSmall">{$lng.lbl_total}: </td>
{* calculate grand total including shipping cost*}
{math assign="grandtotal" equation="minicarttotalcost" minicarttotalcost=$minicart_total_cost minicartshipping=$minicart_shipping}
{* end of grand total calculation *}
<td align="right" class="ProductPriceSmall">{include file="currency.tpl" value=$grandtotal}</td>
</tr>
</table>
i couldnt figure out how to code it right but in general, you don't need the equation per se b/c "minicarttotalcost" already includes shipping