Vendor Currency Wrong

[channelsurfer]

Hey there,

I have configured 2 Vendors. One for Euro and one for USD. In the Backend everything seems fine. But when i login to the Frontend in the USD Shop the Prices are always shown in Euro. Also the currency converter
shows only Euro currency. Module checked and everything o.k. (Take vendor currency). Any ideas? My joomla 2.5 and virtuemart are updated to the latest version.

Thanks for any tip...