kirat

hi, i have an site in opencart. http:// www. domain.com/ i have chosen default currency as pound. and it shows great in frontend... i.e all products in pound. but.... http:// www. domain.com/folder/ in this ....when i have chosen default as dollar. and it shows in all products in dollar in frontend in this http:// www. domain.com/folder/ but currency changed in this also.... http:// www. domain.com/ .... it shows dollar instead of pound. i hope u understand what i asked!! can anybody sugggest me on this something... how to correct it.... ???? thanks.