Currency problem

I have tried to find a solution in already posted treads but could not. I have chosen Polish Zloties at PayPal as my primary currency and have added a proper currency sign in Global Settings (aMemebr). However every time the user fills up the sign up form and is sent to Payl the currency will be changed into $. How can I override this?

Ok, I've done it! I corrected Paypal_r plugin manually changing USD into PLN and it works well.

Or you could have set it on a product by product basis without editing the plugin