I'm running Win7 Pro, Office 2007. When I load up Adobe Reader 9.2 any PDF opened appears to have the entire page covered with black dots equally separated like a dot matrix pattern. This is with any PDF file not just the ones I convert a Word doc with MS PDF converter. While you can still read the document text, a plain white background would be much better.
Anyone having this issue?

That sounds quite strange, are you able to upload a screenshot of this so that we can see it? And this issue occurs with every single PDF you open, even with some random ones from the web, not just ones you created?
Basically, if it happens with every second PDF file that you open, and all of these PDFs have come from different sources, then it sounds like a problem, or an unwanted setting, with Adobe Reader. The screenshot will help us determine where the problem lies…