So anyone have luck on the autodim issue?? I called to dell pro support and even them don't know what's happen. It is not related to the power option rather related to either Intel power saving technology or dell intelligent option which both not exist at Vostro 5470. Case still pending will update once fixed by dell team. Thank you

Which do you think would be a better buy, vostro or acer v5-473pg?

I getting hate this device after 3days owning it. The first 1 I bought on Wednesday come with Win8.1. But then after 1 hour use the bottom of the device start to have a bump on an area. I feel weird and today go for 1 to 1 replacement. They replace me a new 1 but only come with win8. They told me it is easy to update to win8.1 just go to the store will do. They say the file is too big so I only can do it at home. Now back home, the device suddenly lag and black screen for 10 minutes after I get into desktop. So I hard press the power button for few times and it finally turned off. I restart again, and yes after a few click on the device it only able to power on. Go to the app store to download win8.1, it keep showing that I am not the admin of device so I am not allowed to download. But weird thing is it showing Win8.1 installing at right top of the store screen. I click in, the win8.1 is downloading but it keep stays at 0%. Anyone can teach me what to do. I already go back to Dell store for 3 times already.