Since EyeX and Steelseries Sentry is based on the IS3 platform, which is the end of life, it is not supported by the latest version of Tobii Ghost. You can download the last working version here.
There is however one problem that you will have to work around, auto-update.
- Go to %localappdata%\TobiiGhost
- Click the installation file for Tobii Ghost 1.8.1
- Start the installation and delete Update.exe before Tobii Ghost 1.8.1 is automatically launched.
- Enjoy Tobii Ghost staying on 1.8.1 forever and ever!
The main point is to make sure that the Update.exe file is renamed or deleted before the installation finishes and Tobii Ghost autostarts.