I have to agree that something's not quite right with this feature.  The way we 
had it implemented in Mondrian, moving the blue marker down by one line would 
simultaneously scroll the window up the same amount.  But the way it's done now 
in Rietveld, the blue marker moves all the way to the top or bottom of the 
window before scrolling occurs, and then it jumps by almost a whole page.  
Also, I find that in Firefox (FF 12.0 on Linux at least) the page up/down keys 
have stopped working.

Andi, can you revisit this?  I think that some previous recent complaints about 
the blue marker also had to do with this -- I'd forgotten that there was a 
functionality change.  Or perhaps something else more recently made it worse??? 
 I don't recall noticing this during the review.

If the screen still scrolled as normal, I certainly wouldn't mind that the 
marker moved in the opposite direction.

Agreed, this came up so often in the last few weeks, I'll have a look at it 
ASAP.

I've uploaded a modified version that scrolls immediately to my test instance: 
See for example http://rvtests.appspot.com/73842/diff/1/upload.py

Is this behavior better?

Yes, it's much better.
It's a significantly slower scroll than a normal web page, which is a little 
odd, but I can deal with that.

Thanks!

Review: http://codereview.appspot.com/6221068

This issue was closed by revision d86fc9600d63.