A Dell All-in-one has been functioning perfectly since being put into service in July 2014. On March 8, 2015, it developed a constant flickering in the task bar area at the bottom of the screen. All applications function normally, but under all conditions the task bar area constantly flickers. You may view a short video of the problem at this link
. During an extensive session with Dell Technical Support, they concluded that it is a software, not hardware problem and proposed purchase of the software support service. However, the flickering area at the bottom shows up as soon as the computer is booted as the Dell BIOS screen appears, long before the operating system starts. A video at this link
shows the flickering during the boot. I also moved the task bar to the left side of the screen and you can see the flickering at this link
. Additionally, I restored the computer to its status as of several days before the problem first appeared and we still see the flickering. Thus, I am convinced that Dell should accept this as a hardware issue to be covered under warranty.
I would like to know if anyone has seen a similar problem and if you think it is hardware or software related. Any ideas about how to resolve the issue would be greatly appreciated.