cant enable sound

Put the summary of the bug you're having here
started new game and there was no sound

What I expected to happen was...:
Describe what you thought should happen here
check if sound is enabled

What actually happened was...:
Describe what happened here
open options and click to enable sound
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...open options
3. ...try to pull the sound bar to the right
4... crashed