When i try to open a pdf in new tab. the browser errors out with a white screen and if i want to open in Document Viewer, i need a password. on my windows machine, it opens just fine. never showing a loading indicator. then i downloaded the .deb of adobe reader from their site and installed it. it fails to open it. on a different 12.04 computer. the adobe reader program opens the pdf but then goes back to grey screen saying "Adobe needs to be updated".