After our users use Inkscape for a short time, the mouse cursor turns to a spinning ball.

* The cursor remains a spinning ball even outside inkscape and even after inkscape is closed

* This hasn't happened after using any other program (gimp, office, gedit, browsers, terminals, etc.)

* It happens without fail when we use Inkscape, but see "More info" below.

* If there is a pattern regarding when the cursor turns to the spinning ball, I have yet to figure it out. That is, it seems to happen at any time: while editing text, or adding a box, or adding a spiral, or moving something, etc.

The weird thing is that when I take a screenshot, the cursor looks normal in the screenshot. In order to make an image of the problem, I had to take a photograph of the screen. See images at the link below; I added descriptive comments. https://goo.gl/photos/bttn8JmHNQM871mo8

More info:

* I'm using LTSP.

** It always happens on the clients, but not on the server that I've seen yet

** Since it only happens with inkscape, I'm reporting to you before trying the LTSP folks

* OS info: Ubuntu 14.04.4 LTS

** inkscape is up to date

** uname -a Linux rime 3.19.0-25-generic #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux