Possible Duplicate:
How do you make changes to a Word template?
I have a Word 2010 file that I save as a .dotx file, a Word template. My understanding is that when I open this file and make changes, I can't save over it; I have to pick a new file name that's defaulted to the .docx extension. However when I chose 'Save' it saves over the .dotx original, and when I choose "save as", it defaults to saving over the .dotx again. In other words, it acts just like a regular docx file and not a template :P
What am I doing wrong?