Unable to view flash content with Flash 10,0,22,87 as an Non Admin

Question

We currently have an issue with in our Citrix farm with Windows 2003 Servers (x64, R2, SP1) Where Flash Flash 10,0,22,87 is installed and working fine when logged in as a Domain administrator but will not work as a normal (non administrative user) to confirm I've given a user who it did not work for Domain admin rights and it started working straight away. I'm using (and published within Citrix) the 32bit version on IE for compadibility reasons and have also tired this on a Window 2003 Server (x86 R2 SP1) and am getting the same results so I have to assume the issue is with Flash and not with my setup.
I've tried the following recommendations:
Remove with Adobe Flash removal tool and Reinstalling via website with an Domain admin login using the change user /install command
Remove with Adobe Flash removal tool and Reinstalling via install_flash_player_ax.exe installer with a domain admin account using the change user /install command
Allowing Domain users Modify Premissions (to both the Directories and Files) to the M:\WINDOWS\system32\Macromed\Flash\swflash.ocx & M:\WINDOWS\SysWOW64\Macromed\Flash\Flash10b.ocx
Following KB article http://kb2.adobe.com/cps/624/624850b5.html and applying the premission changes recommended
Following KB article http://kb2.adobe.com/cps/191/tn_19148.html and checking the registry premissions on these items
I've enabled all ActiveX and Java related IE options in Group Policy to allow the to run for the Internet Zone
When going to http://www.adobe.com/software/flash/about/ either as a Domain admin or a Regular user it confirms that "You have version 10,0,22,87 installed"
Still I cant seem to get flash components of websites to load when logged in as a non Administrative User.

Answer 1

this is what fixed the issuefor me:
Be sure to try this on a test machine and back it up if needed.
In the system registry
For each of the following registry keys:
HKEY_CLASSES_ROOT\CLSID\{D27CDB6E-AE6D-11cf-96B8-444553540000}
HKEY_CLASSES_ROOT\CLSID\{D27CDB70-AE6D-11cf-96B8-444553540000}
HKEY_CLASSES_ROOT\CLSID\{1171A62F-05D2-11D1-83FC-00A0C9089C5A}
HKEY_CLASSES_ROOT\TypeLib\{D27CDB6B-AE6D-11CF-96B8-444553540000}
Right-click the key, select "Permissions"
In the Permissions Dialog click the "Advanced" button Click "Add"
Enter "Everyone" and click "OK" to accept Select "Allow" for the "Query Value", "Enumerate Subkeys", "Notify" and "Read Control" permissions. Do not change any existing permissions.
Source -  http://www.adobe.com/go/624850b5