Hi, new guy here. Long time guitar player just getting into recording. I'm currently recording a song in Sonar, and I have no idea what I did, but I have a squiggly (highly technical term) line above the volume slider on three of my tracks and now I can't adjust the volume on either. What did I do? 

Sounds like you added some volume automation envelopes
You can delete them in track view by opening the automation lanes, and deleting the envelopes

It took me a little while to figure it out, but that was exactly the issue, noynekker. Thank you.