I am working on an MS Word document with various indented lists in it. For some reason every time I open the document, some of the list numbers change to italic style, even though I have never set them as such. I change them back every time, however the next time I open up the document, they have changed back. Does anyone know why this is happening, and is there something I can do to stop it happening in the future as it is really bugging me?

Cheers,