If you select File -> New Message when you're in the Compose window nothing is happening.
But if you select File -> New -> Message a new window comes up...
It's a known bug for which we alreay have a bug report!
*** This bug has been marked as a duplicate of 55883 ***
Status: NEW → RESOLVED
Last Resolved: 18 years ago
Resolution: --- → DUPLICATE
Status: RESOLVED → VERIFIED
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