when I try to use any of the Charms/apps on my windows 8 screen (such as bing news, mahjong etc, am told I'm not connected to the internet. Yet there is an active internet connection. Have spent so many hours on phone to my ISP, Microsoft, Acer etc and not resolution. Only thing they say is my Internet is too slow. ISP dispute that. This worked well until about a month ago. Any help would be appreciated.