Hi...I have upgraded to KitKat...and since then I see my screen dim up/down when I change from apps to websites. I just wanna know if anyone is has been having the same problem. It didn't happen till I updated. I talked to Dell & then can't find anything about it. So if no 1 has the same problem as I do. Then I will send it back to Dell...Pls let me know if anyone else is havin this problem. Thank you.
