different price when gets to 2checkout page

Hi all,

I have an odd issue. hopefully someone has an idea.

in my shop https://www.clickyshop.com i have two different currencies. USD and Quetzales (guatemala). THe default has to be USD because of 2CO.

At first sight everything works great, customer enters site, prices are shown in USD and Q. When customer checks out with prices shown in USD and gets transfered to 2CO to finish the transaction, still everything goes well.

BUT, when he would like to see how much it cost in Q. (and most, if not all customer wantoto know) and checks out in Q. the amount showed in 2CO is not equivalent to the USD amount.

An amount which should have shown up like 14.00 USD in 2CO, just showed 1.97USD...!!!

Thanks in advance for help.

Regards,
Kruna