I'm using Gravity Forms on a Dutch WordPress install. Most of the terms are translated, except for Price, Quantity and Total, on frontend and admin. I tried adding this in .po file (several instances of price, quantity, total) and exporting to .mo, but no luck. The available Dutch translation plugin doesn't solve this either (http://wordpress.org/extend/plugins/gravityforms-nl/).
Could this be solved on a per-site-basis in functions.php?