That part worked for me, too. The update worked and Acrobat Pro 9.5.1 is doing its thing flawlessly.
However, I've had a marked jump in tracking cookies that began immediately after updating Acrobat Pro 9. I was doing just fine until then. I use MacScan to detect and delete tracking cookies and other malware. The change in the number of tracking cookies was dramatic. Since sending my first post, I've learned through a lot of digging that the problem has a lot to do with Safari. I have 5.1.5. Other folks have suggested that Firefox does a better job with tracking cookies. I may try that.
