I am using Adobe Reader XI in Windows 7 and whenever I open a PDF and press ctrl+f to search the contents of the PDF document, I can get two or three results before a blue box comes up. When this blue box comes up, I can't run anymore searches. I've tried a repair and I have also uninstalled and reinstalled Adobe reader, but this hasn't resolved the issue. On some PDF documents, I can still search the document contents even though the blue box has come up, but on other PDF documents, I can't run any additional searches when the blue box comes up.
