Domain has an unknown Exchange signature (Best practice analyser on exchange 2010)

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The best practice analyser gives me the error :

Active Directory domain 'ETRO' has an unrecognized Exchange signature. Current DomainPrep version: 12639.

But everythings works, there was no Beta or pre-release version installed before

The solution seems to prepare AD for exchange 2010 but that was done prior to installing exchange server (otherwise the installation didn't continue I suppose)

Any ideas how to remedy this problem?

Need I/Can I just re-run AD prep without problems?



Also exchange server profiler says that it is an unsupported version

The tool is unable to select a database
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