I have the same problem with Evince in 13.10. I also noticed that this doesn't happen when I use my laptop's touchpad (I have side scrolling enabled via Unity Tweak Tool). No special binding assigned to the scrollwheel (just a "bring window to bottom" for middle button click on titlebar).
I have the same problem with Evince in 13.10. I also noticed that this doesn't happen when I use my laptop's touchpad (I have side scrolling enabled via Unity Tweak Tool). No special binding assigned to the scrollwheel (just a "bring window to bottom" for middle button click on titlebar).