My SGS2 is downloading and uploading CONSTANTLY, over wifi and 3g, when 'Background data' is checked. It hasn't always been like this, and has only really been an issue over the last week or so. It's crazy. Over wifi yesterday, with 'Background data' checked, the phone downloaded 400mb in about an hour. What has caused my phone to start behaving like this? Under manage accounts, I have : Twitter Twitter for Social Hub Google Samsung Account Facebook for Social Hub Windows Live Hotmal for Social Hub I'm not sure if this is relevant, but at around the time my phone started going haywire, I had installed aDownloader and Kik messenger, although since their subsequent removal, the phone is still persistently downloading. Any help greatly received Thanks.