Why do my styles keep reverting to a font I don't want?

[rbilleaud]

Why do my styles keep reverting to Calibi? I set up a style with an Arial font, apply it to text, save the document, open it up a again, and BAM the text is back in Calbri. I mean if you save a document, you'd THINK you'd want to keep the same style of font. I swear, Word is like an insolent child that just pretty much does what it wants. I have been working extensively with Word for 20+ years now and I still haven't figured out how to tame the beast.