[Spambayes] why this message says it can't be filtered?

[Tiago Estill de Noronha]

When I try to set it as spam or not spam it say:
"no filterable mail items selected now"


*********************
Tiago Estill de Noronha
TiagoTiago at Globo.com

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.545 / Virus Database: 339 - Release Date: 27/11/2003
 
  
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