Here's a problem that I can reproduce reliably on my Mac, even in a separate user environment with no customizations: Connect a wired Apple mouse (with scroll ball) to computer. In System Prefs > Mouse, choose a fast scrolling speed (I use the second-last level on the right). Download this file: https://www.dropbox.com/s/fm69bgw10sckslg/2014%20compared%20to%202013.docx?dl=0 Open the file in Word 2011. Scrolling up and down such a document is absolutely maddening. First of all, there is the initial problem of Word failing to compute the pagination for the entire document right away. So I have no idea how long the document is to beginning with, and as soon as I start scrolling down fast (with quick rolling of the scroll ball), Word 2011 starts computing the pagination and makes the scrolling extremely choppy and unreliable. But even if I work around this problem by jumping directly to the end of the document (which effectively forces Word to paginate) and then start scrolling back up really fast, I still have endless problems. Word keeps jumping back down again and again while all I am doing is scrolling up . This only happens if I make very quick successive rolls with the scroll ball. If I go slower (slower than I want to go), things work more or less as expected. The scrolling is still choppy and makes it hard for me to follow where Word is actually taking me, but it is somewhat more tolerable. But with very fast rolls, the scrolling is basically useless. I see this problem with documents with tracked changes, but also with other complex documents containing inserted graphics, tables, and so on. Or indeed, even with this very document after hiding the tracked changes by choosing to only show the final version without markup. Even then, if I scroll too fast to Word's liking, Word ends up losing track of where I am and where I want to go. This is on a 2014 Mac Pro, which is more than powerful enough to handle fast scrolling. Can anyone reproduce this? Can anyone representing Microsoft tell me what right Microsoft has to limit how fast I should scroll when all I I want to do is to scroll very fast? BETALOGUE - Weblog at http://www.betalogue.com | Twitter: @betalogue A family of Microsoft word processing software products for creating web, email, and print documents.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question. Anonymous 2015-03-04T13:03:03+00:00 Something's not right is right! I can definitely reproduce this in a separate user environnement with no other app running, even after logging out and back in. Here's what the document looks like when I open it: If I jump to the end of the document and then start scrolling up really fast with the scroll wheel, Word 2011 keeps jumping back downwards even though my scrolling is exclusively going up. If I slow down and scroll more cautiously, things work as expected. I might expect some slow-downs because of the many tracked changes, but the jumping in the wrong direction cannot be explained. I have relatively fast mouse settings in my main user environment: The settings are a bit different in my separate, test user environment: But I can reproduce the problem there as well, with quick, sharp scrolling movements with the scroll wheel. Pierre Igot -- BETALOGUE - Weblog at http://www.betalogue.com | Twitter: @betalogue 0 comments No comments Something's not right is right! I can definitely reproduce this in a separate user environnement with no other app running, even after logging out and back in. Here's what the document looks like when I open it: If I jump to the end of the document and then start scrolling up really fast with the scroll wheel, Word 2011 keeps jumping back downwards even though my scrolling is exclusively going up. If I slow down and scroll more cautiously, things work as expected. I might expect some slow-downs because of the many tracked changes, but the jumping in the wrong direction cannot be explained. I have relatively fast mouse settings in my main user environment: The settings are a bit different in my separate, test user environment: But I can reproduce the problem there as well, with quick, sharp scrolling movements with the scroll wheel. BETALOGUE - Weblog at http://www.betalogue.com | Twitter: @betalogue Anonymous 2015-03-04T09:25:53+00:00 Sorry Pierre: No repro here. That document scrolls normally on this Macbook Pro, with the trackpad, with a Logitech USB Wireless Trackball, and with the wired Apple A1152 scroll-wheel mouse that came with my Mac Pro. Many years ago, they changed Word's scrolling mechanism to incorporate a real "timer" instead of running off the CPU speed. The change from the old 4.77 MHz CPUs to ones clocking at 3GHz meant Word's scrolling had gone from "relaxed" to "startling", and so they fitted a real timer. Obviously, a document with lots of tracked changes will slow down a bit if the machine is memory- or CPU-challenged. Do a clean re-start and test with Word as the only application running: something's not right, and it's not Word: not here, anyway. Cheers 0 comments No comments That document scrolls normally on this Macbook Pro, with the trackpad, with a Logitech USB Wireless Trackball, and with the wired Apple A1152 scroll-wheel mouse that came with my Mac Pro. Many years ago, they changed Word's scrolling mechanism to incorporate a real "timer" instead of running off the CPU speed. The change from the old 4.77 MHz CPUs to ones clocking at 3GHz meant Word's scrolling had gone from "relaxed" to "startling", and so they fitted a real timer. Obviously, a document with lots of tracked changes will slow down a bit if the machine is memory- or CPU-challenged. Do a clean re-start and test with Word as the only application running: something's not right, and it's not Word: not here, anyway.