Check out this very recent discussion:
http://forums.teamestrogen.com/showthread.php?t=4255&
And this one that is a bit older:
http://forums.teamestrogen.com/showthread.php?t=2151&
Check out this very recent discussion:
http://forums.teamestrogen.com/showthread.php?t=4255&
And this one that is a bit older:
http://forums.teamestrogen.com/showthread.php?t=2151&