Main menu / positioning /

I have a Dell E171FPB monitor that had the same problem with the Main Menu coming up and I thought I would tell you what I did to fix the problem.

1. I shut down the PC.
2. I removed the power cable and video cable from the back of the monitor.
3. I removed the four screws that hold the stand for the monitor and slid the stand off.
4. I then removed the 5 screws that hold the back cover on the monitor.
5. I took two flat blade screw drivers and carefully removed the back cover.

At the bottom of the monitor case, there is a small circuit board the holds the 6 switches for controlling the display.

6. I located the button that calls up the Main Menu. It is the second switch from the left as you are looking at the monitor from the rear.
7. I used a small solder iron and heated up the four prongs in sequence while holding the switch with a pair of needle nose pliers. I had to rotate this process from one prong to the other while all the time applying slight pulling pressure on the switch pulling it away from the circuit board.
8. Once the switch was removed, I put the cover back on and tightened up the five screws.
9. Then I slid the base back in the slot it came from and tightened the four screws.
10. I connected the video and power cable and turned on the PC.

With the switch removed the Main Menu never popped up again and I am so very happy.

Sounds like a button is sticking. Does it seem too sensitive? It should give a little resistance when pressed and have about 0.1" of travel. Try gently prying outward on the offending button with a pin or needle. If you're comfortable taking the monitor apart, do so and check the alignment of the menu buttons.