Acrobat Pro 9.0 freezes when viewing/scrolling through the table of contents of a document

Question

I am hoping someone can help me or has experienced the same problem I'm about to describe. I belong to the technical publications group of a fairly large company and I review a lot of PDF documents. I just installed Acrobat 9.0.0 (via CS4 Design Standard) and I've noticed on larger documents where there's a full page or several pages worth of Table of Contents, Acrobat 9.0.0 seems to freeze up when I begin scrolling through the TOC. For example, if I want to use the Text Edit tools or use a sticky note, when I press on an icon, Acrobat will freeze for a good 10 seconds, then will allow you to press the icon. It tends to freeze each time I want to make my next edit or even pressing the up/down arrow buttons to go to the next page. Once I get through the TOC pages, Acrobat seems to function normally--no freezes.
Has anyone experienced this? Would appreciate any kind of advice on how to fix--perhaps there's a patch or update?
I didn't experience any of this using Acrobat 8.0--I never had any real problems with Acrobat until 9.0.0.

Answer 1

Your issue may not be related to a difference between v8 and 9.
I have not had this problem on my computers, but a coworker had this issue. For many documents that others were able to open and scroll through without issue, his computer was freezing and unfreezing.  IT determined his graphics capabilities were not able to keep up with the requirements of working with larger documents and gave his computer a RAM upgrade and a new graphics card. Particularly during scrolling, higher demands are made on the computer to graphically render and re-render page content. Documents giving him problems before became a non-issue.
A new graphics card is obviously a $$$ solution, but you might want to check to see if your RAM meets the minimum requirements and check to see if there are any program updates (Help > Check for Updates).
I have had an issue of pdfs freezing, but not specifically in the table of contents areas. If your document has pages with images that have an unusually high number of layers, it may affect the ability to work effectively in the document.