Lito, I have the same trouble of you sometime ago…
It was not a virus, but just a suspicious attach with extension .exe.
It was not infected but I receive a message without the attach.
Few minutes later I receive the entire message. This is why pavels ask you about the delay (I suppose).
Techie is absolutely right… Could you answer his questions?
In Outlook Express you can set OE to PREVENT opening of email containing a potentially dangerous attachment?
Did you try to MOVE the virus to the Chest at all? If so, what happened? 