Use the page up/down keys shouldn't move the cursor
(i.e. they should behave like scroll up/down works).
Currently, the cursor keeps repositioning itself every
time you press page up/down. I don't understand why
you would want your cursor to keep moving around on
you just because you want to look somewhere else in
the file briefly.
I actually modified my private copy of 5.2 to behave this
way, but when I upgraded to 5.3, I never got back
around to making the change again. Now that I'm
working with 5.4RC1, I decided to try to get this change
added in officially. I can try to dig out my 5.2 changes
if it would help.
If not everybody likes this change, perhaps there could
be a preferences that could turn it on/off.