KMail never shows threads anymore

[Aaron Lewis]

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Hi,
	I'm meeting a problem with KMail , it doesn't show relevant mail as a
group , like what GMail does ,
just single ones.

	How could i re-enable this feature ?

	KDE Handbook says there's a "Header" Option in KMail's Apperance Tab ,
but my KMail just doesn't have that label.

	And i tried to remove ~/.kde4/share/config/kmail* ,
~/.kde4/share/apps/kmail* , doesn't work , still no groupings.

	I'm on KDE 4.4.5 , everything newest on Gentoo System.

	Any ideas will appreciate  , thanks !

- -- 
Best Regards,
Aaron Lewis - PGP: 0x4A6D32A0
FingerPrint EA63 26B2 6C52 72EA A4A5 EB6B BDFE 35B0 4A6D 32A0
irc: A4r0n on freenode
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