Acrobat Pro and reader  9 locking up when closing a file or performing certain other actions

**Reported by andrewd on 2010-03-31 00:04**
When closing a file in Acrobat V9 with NVDA 2010.1 beta 1 Portable running, Acrobat locks up and causes NVDA to stop speaking.  Pressing alt-c kills Acrobat and NVDA resumes normal service.  This was consistent with several PDF files.  The problem does not occur with NVDA 2009.1 installed version.
