Folder Redirection Refresh Issue

Hi There,

I have a cluster of servers running 2008R2 and Citrix. GPOs are applied to effect folder redirection for desktop, docs, favorites, etc.

The issue is that when a folder or file is created on the desktop, you have to refresh the desktop in order to see the files.

It appears as though the issue was fixed in this KB: http://support.microsoft.com/kb/2525332, but my version of shell32.dll is already newer than the version called out in this hotfix. I am running 6.1.7601.22015 in production -- a version that was updated due to a security patch for remote code execution in this KB: http://support.microsoft.com/kb/2691442. 

My hunch is that the security fix was "rapid release" or whatever and failed to include the code in the hotfix that came before it and fixed the desktop refresh issue. Can anyone point me toward a list of hotfixes that contain a newer shell32.dll so that I can start to figure out which versions introduce this bug and which versions fix it?

I've tried various values for NoRemoteChangeNotify registry keys and similar. Those options do not fix this problem.

Thanks,
Dave