wrong letter appears when I type W

When I type the letter "W" (in upper case, the lower case comes up correctly)  the letters hi come up. That seems to the only letter affected. I tried a fix  by going to edit>preferences>uncheck the Use single key accelerators to access tools. I tried changing the font but I am not sure which place to do that. I changed it from "let adobe select" to one of the two other options that I didn't understand. It didn't work for me.  This is a legal document and I really don't was Willie's name to show up as willie or hiillie. Are there other suggestions?