I was working in my document on Adobe Acrobat XI. I did a text recognition on a scanned document so I could highlight the text. I highlighted the text on the page, and then almost all of the other scanned pages in the document went blank. I tried to do text recognition on the entire document to see if that would correct the viewing problem. That did not fix it. I cannot see my pages. The entire document is a scanned document with hundreds of pages.