Hello,
I recently purchased a new U3415W from Dell.com and got it last week. There is a ticking noise that keeps coming from the back of the monitor that occurs randomly on certain backgrounds. I can always replicate this issue by coming off power saving mode to my PC input with the monitor displaying my desktop or other images.
I searched Google and saw another user experience something similar HERE
I recorded the noise coming from the back of my monitor with my iPhone. Might have to turn the volume up a bit due to the fan noise coming from the computer. Link to the video HERE
I would to keep this monitor and get an exchange for a new one (not refurbished) if possible? As stated earlier, the monitor was purchased from Dell.com and I've only had it for a week now.