OK, not a true 'crash', but annoying.

Sometimes, and I can't really determine when, when I put something into heading one (in draft view) my ability to scroll down normally freezes, and the heading and the text immediatly below the heading goes away. Not gone, gone, as I can find it again by grabbing the scroll bar and going way, way down in the text and sneaking back up, but gone as if I was in Print view and I had inserted a page break.

Silly error costs me a ton of time. Anyone know a fix? Word 2007, Windows vista, pretty normal documents otherwise.

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