I saw this thread
http://www.1addicts.com/forums/showthread.php?t=1442472
But this thread makes it sound like it could be a PCV issue?
http://www.1addicts.com/forums/showthread.php?t=1429659
Could be worth noting that the car also puts out a little white smoke all the time, well after most cars stop emitting water vapor. Still haven't tracked that down.