PLEASE HELP! Using Windows 7 (64-bit) and Adobe Acrobate 8 Pro, for PDF docs, there's no scroll bar or view of number of pages in the preview pane in Windows Explorer. The scroll bar is there for all other files (Word, photos, etc) Is there a way to fix this? If we purchase an updated version of Acrobat (thinking X or XI), are we going to run into the same problem? THANKS!!