Adobe Reader (AcroRD32.exe) is taking up 99% of the CPU

I am having an issue where Adobe reader is taking up 99% on the CPU on multiple XenApp servers.  Users will close adobe but Acrord32.exe will remain open and the server will become unusable.  I have tried the the below solution with no luck.  I have tried calling Adobe and was directed to chat because they didn't support Reader on the phone and was then told that they only support Reader on the forums.  This is a production issue that will soon be escalated if we cannot resolve it and I cannot talk to anyone that can help me directly.  I had searched the forums before I called an there was no solution to the issue that I could find.  I am a bit frustrated that they only support this product in a forum.  Please help.

1. Take registry backup.

2. Open the registry editor and navigate to  -->  HKLM\SOFTWARE\Policies\Adobe\Acrobat Reader\10.0\FeatureLockDown

3. Add the a key with the name  --> "cWelcomeScreen"

4. Add a DWORD value to that key --> "bShowWelcomeScreen = 0"

Thank you