Hello all: I've posted before that I'm concerned my Macbook may have malware on it, and this is going to sound crazier, but I'm also concerned about my iPhone. For the past two weeks, every now and then when I turn on my phone and quickly open Safari, it will open up to some strange dropbox account that I've never seen before. It will stay there for may 2 seconds, just long enough for you to recognize that it's a dropbox account with two videos in it, then it suddenly and quickly slides to the left. It's as if its sliding to a second screen. I'm not very familiar with second screen on iPhone. I know i've never used it. I've literally chased the dropbox screen with my finger trying to drag it back, but it doesn't stop. I've been trying to catch it fast enough that I can take a screen shot of it and check it out my closely. Nothing. I've reset my network settings, deleted all web data and history, deleted my plugins, I've opened tried shutting all my safari pages (both public and private). Nothing. I can open my iPhone and safari exactly five minutes after closing it, and it will be there. I can wait another five minutes, and it may be there again. I'll wait again, nothing. I can open it ten minutes later, and nothing. I'll forget about it, and open it up an hour later, and it's there. Try to screenshot it and it's gone before I can get ahold of it. It's an iPhone 6 Plus. What could be doing this?