Html viewing in Kmail

[CA G Rajesh]

Hi all,
I have a strange problem, for past few days, in Kmail. I am using latest 
saucy now. Mostly I send html formatted messages. While composing or viewing 
html mails in inbox, I find no problem. But once html mail are sent, the 
sent-mail folder or mails saved in draft while composing, loses html *view* 
immediate at viewing it.
I understand that the html mails reach the receiver properly with 
formatting. Setting kmail > menu bar > folders > prefer html to plain text 
(similar settings in kmail > menu bar > settings > configure > security is 
already done) does the trick for that mail. But new new mails get the same 
problem. I have set it again and save the display format by right clicking 
the mail. I tried to delete kmail2rc too. Nothing seems to work :(
How to correct this problem? Is this a bug or am I missing some 
configuration settings? 
Thanks in advance.
Rajesh