Hello All - I have a monitor that I bought back in 2007, it's an HP w2408 and it didn't come with an HDMI input. My question is this - It just started this 2 days ago - after about 20mins and after it's heated up some - it goes to sleep on it's own, and I haven't changed or added any new hardware or software to my desktop in years( except for changing over from Win XP Pro 64Bit to Win 7 Pro 64Bit - 5 years ago). It still has a great picture that is crisp and clear and well definded and the menu screen works great too, and I have never used the on board speakers at all since I bought it. "Thanks to All" in advance who respond, and "Thanks to All" for your time in helping me....