[Crossposted to Vista Mail newsgroup]
If you disable (or even uninstall) F-Secure's anti-spam component *and*
disable F-Secure's email scanning, does this behavior persist?
Email scanning provides no additional protection and it's the most likely
cause of the behavior.
Why you don't need your anti-virus to scan your email
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://www.yqcomputer.com/