I'm having a problem getting started with Audacity. I'd like to record audio from my guitar. I've got my guitar directly plugged into my laptop's line in. I'm using a standard 1/4 inch cable with a 1/4 inch to mini adapter to allow me to plug directly into my computer. When I plug into my computer, I get a pop-up alerting me that the computer recognizes I am utilizing a line in. When I hit record on the audacity program and start playing, I just get a straight line and Audacity is not picking up any of the guitar's audio. I feel like I'm missing an obvious step. My OS is Windows XP and I'm using a 4-5 year old Dell Inspiron E1705 laptop. I've also tried plugging in my guitar to my amp and my amp to my laptop but to no avail. Any help would be greatly appreciated!