0 price displayed after currency change

[stando]

When I edited US Dollar currency for another (I changed USD and $ in localization->currency| ) then in the catalog, there is allways 0 (zero) displayed instead of the price. I tried to add new product to the catalog if there will be some change, but it is still the same.
What could I do if I want to use another (and the only one) currency as USD???
THX

[stando]

I solved it, I have found the thread in this forum about that...