WHAT CAN CAUSE A VIEW ON A DRAWING TO CHANGE?
Answer: Modify the associated file the view is presenting.
Not only is that a VERY open ended question, it was said very loudly.
There are a LOT of things that can change a drawing view. I imagine that there a pages and pages of things.
Can you be more specific with your particular situation?
It sounds like someone is changing the "front" view at the part/assembly level.
If you use the orthographic front view for your drawing and then update the front view in your model, it updates the drawing.
Hit spacebar at the part level and you will see a button called update views (or something like that).
shhh... occassionally I'll do that to mess with some people.
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