Parsing error after copying new policy files to central store

A few months ago we upgrade our DCs from 2008 to 2008 R2.

Two weeks ago I saw that I didn't copy the new admx/adml files to the central store.

Because I want to use the new policies, I copied all local files from one of the DC's %windir%\PolicyDefinitions to the central store.

Today I opened rsop.msc on one of the member servers and got a "parsing error":

**ADML**
Administrative Templates
Encountered an error while parsing.
Expected one of the Following possible element(s), < text >,
< decimalTextBox >, < textBox >, < checkBox >, < comboBox >,
< dropdownList >, < listBox >, but Found < multiTextBox > instead.
File
\\contoso.com\sysvol\contoso. . . TerminalServer-Server.adml, line 198, column 60

**ADMX**
Administrative Templates
Encountered an error while parsing.
Encountered an unknown error while parsing (error = 0x87400001): -2025848831 (0x87400001)
File
\\contoso.com\sysvol\conto. . . \Terminalserver-Server.admx, line 9, column 41

After restore of the old admx/adml it worked without problems.
Any ideas, whats wrong with the new admx/adml Templates?

Update 16.01.2012
Could it be possible that the old "2008 SP2" Terminal Servers cannot work with the new (Remote Desktop Services) policies implemented with "2008 R2"?