Hello guys, I have a problem with my computer or rather with the Operating system. I have found today that I cannot open the thumbnails of photographs. I double click on a thumbnail and the hourglass comes up as thought it is going to open but, that is all that happens and the hourglass symbol just closes. I have checked the file associations? and they are all jpeg so therefore I cannot understand why they will not open. Could you please help? Best regards jonni65.