PgUp freezes

[weamish]

Still having PgUp issues in Word 2007. Near as I can tell, PgUp works fine unless preceded by more than 7 instances of PgDn - in that case, PgUp works twice, then freezes.



If I hit PgDn 6 times, then hit PgUp 6 times, I'm back at the beginning of the document. If I hit PgDn 7 times, need to hit PgUp 8 times to get back to beginning. And then when I hit PgDn 8 times, PgUp freezes after the second hit.

Any idea what might be causing this behavior? Not using any third-party add-ins.

Thanks!

Steve