Hi,
If you are using Acrobat 9 on a up to date machine then there is probably not a lot we can help with, does it doe this in an up to date Acrobat Reader application, to give some context from the Adobe website
https://helpx.adobe.com/uk/acrobat/kb/end-support-acrobat-8-reader.html
it states:
"As stated in the Adobe Support Lifecycle Policy, Adobe provides five years of product support, starting from the general availability date of Adobe Reader and Adobe Acrobat. In line with this policy, support for Adobe Reader 9.x and Adobe Acrobat 9.x ended on June 26 2013."
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