I have the same problem!!, I tryed with his answers but i couldn't change the simbol, i try to change the language in "regional configuration and of language" to "Español de Mexico" in my case!! (I need the $ simbol but I get £), also i try changed the IIS Globalization language to "Español de Mexico", replacing the arial font that I use in the app reports, in the IE language and finally I print pant and I erase the £ simbol and I change for $ and works for me ja ja ja well, for a moment ja jaja.
Can anyone tell me what else I need to do to get the correct currency displayed in my reports?
Thanks