Changing symbols for product options

We get support tickets from customers frequently that don't understand what + or - means in product option prices. I've searched language and other files, so could someone tell me how to change the + to add and the - to subtract so it shows:

Option text add $option add on price

Thanks

I'm using OC 1.4.9.3.

The foll9owing extension should answer all your questions http://theqdomain.com/ocstore/opu-redux ... on%20price

Installed but still can't get it to work with Global Product Options. Been told if I can't sort it soon I should drop it because it confused customers when it flashes but doesn't update.

uksitebuilder wrote:The foll9owing extension should answer all your questions http://theqdomain.com/ocstore/opu-redux ... on%20price

Haven't noticed it before, but wooowww