How to Fix Acrobat Pro 9 (part of CS5)

First, I have had a number of issues with Adobe over the years and it is my least favorite companies to deal with.  Having said that, I have a issue with an older product.  it just stopped working and while the other CS5 products work, Acrobat this one does not.  Since this was an upgrade does two previous version, it literally takes 4 hours plus to install all three.  Anyone know of a way to fix it without having to reinstall everything?  Also while it may not be a good question to ask here, Are they any good products for a Mac that can relate my Acrobat?