Hi, I have a strange problem, I installed iCloud drive onto my Yosemite Mac, I checked it, all fine I dragged a file in and it uploaded it to iCloud drive all fine . . . then I wanted to make a link to iCloud drive on my desktop, so I went to the finder and dragged the iCloud drive icon from the sidebar onto my desktop . . . BUT instead of it dragging over a little animation appeared of iCloud drive exploding into a puff of smoke and now it's gone, nowhere to be found on my Mac, in the finder, in the list of drives - nowhere - it's gone!