Sorry you are having trouble.
This appears to occur when you have "Access Bridge technology" installed. We will fix Spine so it doesn't crash, but in the meantime you can follow these steps:
1) Navigate to: C:\Users\<username>
2) Open the file called .accessibility.properties using a text editor (Notepad is fine).
3) Find the following lines in the config:
assistive_technologies=com.sun.java.accessibility.AccessBridge
screen_magnifier_present=true
4) Add a hashmark (#) in front of theses lines.
5) Save your changes to the file, then start Spine.
