Hi, I am fairly new to the world of tablets, having only recently bought a Samsung tablet. I have set up Dropbox, and it synchs correctly. I can also view photos from with Dropbox, but every time I try to view a video, it appears to think about it (link with DB?) for some considerable time (little circle going round and round for over a minute) then says "Video problem. Can't play this video." Very helpful I must say. No clue as to WHY it can't play it. Clip in question is in AVI format and plays perfectly OK on my laptop, also from Dropbox. Hmmm. I have just tried an MP4 clip, actually recorded and uploaded from the Galaxy Tab and the same thing is happening to that as well. The clip no longer exists on the tablet, but I still would have expected to be able to play from DB. Anyone else experienced this or has a fix for it?