Interesting, this suffers from the same issue I have with TeamViewer (and only with teamviewer; this Luckysheet is the first thing outside teamviewer I see this

Interesting, this suffers from the same issue I have with TeamViewer (and only with teamviewer; this Luckysheet is the first thing outside teamviewer I see this) on mac os x: if I scroll up in a document that has a vertical scrollbar, it will not only scroll up but also to the right. It happens on all the macs in the house, doesn't happen on Linux/Windows... Well, for Teamviewer; I did not test this one on all those machines yet. The problem does not arise with VNC or any other remote tech or program. I have never figured why it is and it's been there for years across different macs and different OS X versions.