I am in a class that uses video chat and over the past few weeks my computer speakers have been getting horrible, high pitched feedback. During my first chat, my classmates couldn't hear me, and it turns out my microphone had been disabled and I didn't know it. I enabled my mic and now my classmates can only sort of hear me. It cuts in and out and now my speakers have horrible feedback. Help!
My computer is a Toshiba NB 255.