hey there! so I have made many a sketch in my day and now that I have obtained a scanner I would like to share them with you (not suggesting they're spectacular I just need the criticism and insight of the web to make me a better artist and then maybe they'll be spectacular...heres hoping) but whenever I try to drag the thumbnail from my desktop the site chimes in with "you need a preview picture to make this work" I do not know what a preview pic would be and am deeply redneck when it comes to computers. Could somebody please help me out???