After 3 months my Acer 19" started to make a high pitched noise yesterday. It happens when the screen is brighter for example if there's a lot of white on the screen like a blank tab in Firefox. It gets softer when I'm on the desktop due to the darker background. I already got authorized to send it back by Acer for repair so that's what imma do. Seems like it has to do with the power. But I was just wondering if anyone else has ever had this problem. Gonna have to use a 15" crappy LCD while this 1's gone. Also if anyone has dealt with Acer support, did they repair or send you a new monitor?