... and I can't figure out why. Please help. I have tried using a different keyboard and searched through the auto correct options but don't see anything.

What exactly is happening:
When I type a apostrophe it types a €. If I hit back space it converts it to '. This is consistent with how auto correct functions. However, I can't seem to find this setting anywhere in auto correct options and I don't remember setting anything like this. This is only occuring in Office products like Word and Excel.

Thanks for your help.