Character mapping issue in email fields
I'm creating a multi-platform runtime solution which contains fields for entering an email address. The solution is being created on a Mac. A problem I've encountered is that on some computers running Windows XP and Vista, when the email "at" symbol (@) is typed, a double quotation mark (") appears instead of the @ symbol. Bizarrely, if the email address is typed in, say, Word, and then pasted into the database email field it is appears correctly. This is by no means consistent, but does anyone know of a way of ensuring that the @ symbol appears correctly in every version of all operating systems? Seems such a simple thing...
Appreciate any advice