814751 - You receive no warning that the Registry.pol file is corrupted

The registry files might be corrupted.
USERENV(e0.524) 14:32:06:429 ParseRegistryFile: Entering with .
USERENV(e0.524) 14:32:06:429 ParseRegistryFile: Invalid file version.
USERENV(e0.524) 14:32:06:429 ParseRegistryFile: Leaving.
USERENV(e0.524) 14:32:06:429 ProcessGPORegistryPolicy: ParseRegistryFile failed.
USERENV(e0.524) 14:32:06:439 ProcessGPOList: ProcessGPORegistryPolicy failed.
USERENV(e0.524) 14:32:06:439 ProcessGPOs: Extension Registry ProcessGroupPolicy failed, status 0x80004005.

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Slow Logon times
Our labs are having a serious slow down in the log on and log off process. Here is a excerpt from the userenv.log
How to Enable User Environment Debug Logging in Retail Builds of Windows
http://support.microsoft.com/default.aspx?scid=kb;EN-US;221833

Here is an excerpt from the userenv.log on my machine.
USERENV(d8.c0) 10:03:49:664 ParseProfilePath: Mandatory profile (.man extension)
USERENV(d8.c0) 10:08:44:888 DeleteProfile: Failed to delete the appmgmt dir C:\WINNT\system32\appmgmt\S-1-5-21-1390067357-1383384898-725345543-2071, error 2
USERENV(d8.c0) 10:48:22:707 ParseProfilePath: Mandatory profile (.man extension)
USERENV(100.294) 10:48:43:848 RegisterGPNotification: CreateEvent failed with 5
USERENV(100.294) 10:48:43:848 RegisterGPNotification: CreateEvent failed with 5
USERENV(578.5bc) 10:48:44:048 RegisterGPNotification: CreateEvent failed with 5
USERENV(578.5bc) 10:48:44:048 RegisterGPNotification: CreateEvent failed with 5
USERENV(578.5bc) 10:48:44:048 RegisterGPNotification: CreateEvent failed with 5
USERENV(d8.c0) 10:51:30:077 DeleteProfile: Failed to delete the appmgmt dir C:\WINNT\system32\appmgmt\S-1-5-21-1390067357-1383384898-725345543-2071, error 2