Preventing Orca from launching automatically

Hello,

This is my first post and I'm looking for a bit of assistance. I recently installed Trisquel 6.0.1 on a blank hard drive, and the Orca screen reader opened automatically at the login prompt and again after I logged in. This was a surprise to me since I've installed Trisquel 6.0 (not 6.0.1) on other computers, and Orca did not do this.

I was able to prevent Orca from opening after I log in by turning the Screen Reader off in the Universal Access section of the System Settings and following the steps for exposing/disabling Orca in the Startup Applications (http://askubuntu.com/questions/81960/how-do-i-stop-orca-from-starting-up-on-login). However, it still launches automatically at the login prompt.

I've read that accessibility is important to Trisquel 6 (http://trisquel.info/en/trisquel-60-lts-toutatis-has-arrived), so I suppose it's no surprise that running the Update Manager until my system is current and installing the Linux-libre 3.11.0-19-generic kernel didn't change anything. Even so, I do not require accessibility software and would like Orca not to open automatically at all.

A side-effect of this is that clicking on Orca before logging in switches my Dvorak keyboard layout to English QWERTY. My keyboard stays set to QWERTY after I log in and I have to reset it to Dvorak manually.

One curious thing is that in the System Settings > Keyboard Layout > System tab, the input source of the system settings is stuck on English (US). The "Copy Settings" button never changes the system input source to English (Dvorak) to match my user settings.

If I could stop Orca from launching, the keyboard layout would most likely remain where I set it. I don't know if the System input source being set to a different layout is a problem worth worrying about.

As a fallback solution, I suppose I could remove 6.0.1, install Trisquel 6.0 and then do sudo apt-get dist-upgrade, but this is a good opportunity to find out what's going on and learn more about the OS.

Thanks for reading this long post, and thanks in advance for any helpful suggestions.