Prev/Next element not working correctly in big screen intermittently

Steps to reproduce

1. Access a review with a larger monitor (2560x1600)
2. Add a revision that have a file around 100 lines
3. Set the View to be 100 lines
4. Add two inline comments with around 50 lines in between
5. Use the shortcut key 'J' and 'K' to jump back and forth between those two comments
6. Repeat step 5 non-stop
   Sometimes it does not jump to the comment but to the lines in between the comments

Edit:

This may not be related to resolution of the screen. Further testing on this will also result in very intermittent output on a 1280x1024 screen.

Tested with two revision. CR-1 contains a file that has multiple commits (diff) and CR-2 contains a file that only have one commit (file addition). These both files contain 200 lines.

• On CR-1, I was able to easily reproduce this problem where the scrolling stopped between next element (with an in-line comment every 50 lines).
• However, on CR-2, it is slightly more difficult to reproduce the problem. Nevertheless, the problem with moving elements forward and backwards exist occasionally.

Currently it also affects the latest Chrome Version 42.0.2311.152 m on FishEye/Crucible 3.8