If you encounter these two error messages in MOSS WFE application event log:

The last query machine has been taken out of rotation.  Check previous event logs to determine cause. Propagation may be necessary. Component: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

Query machine 'WFE-NAME' has been taken out of rotation due to this error: Language database/cache file could not be found.   0x80041784.  It will be retried in 15 seconds. Component: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

Then copy c:\Program Files\Microsoft Office Servers\12.0\Bin\grcste.lex  to c:\windows\system32.