I have quite a few pdf files that I have uploaded to my tree and today in trying to view them I find that the screen comes up, shows to be downloading, then all I get is a black screen, no file. I have deleted one file and reuploaded and still get the same thing. I cleared my cache, history, cookies, etc. That didn't help. Is anyone else having this problem. I can view the pdf files that are saved on my computer, but not after uploading to tree.