I have the latest adobe reader X and use it with Windows 7. After downloading pdf files, they open to read but will not print. I go to File, then Print, and a big white blank screen comes up with nothing on it but a tab at the top saying "Print". There is no advanced options available where I can choose " Print as Image." The strange thing is that once this started happening, I went back to older downloads from emails that I had printed out a few weeks ago and they would not print either. Any advice?