Kmail - keeps losing settings for folder pane

[AG <computing.account@googlemail.com>]

Hello list

I've noticed that with the new version of Kmail (1.11.2) running on 
KDE4.2.2  that  the folder tree view seems to keep losing the "total" 
column from the display, even though I keep setting that as my default.  
This is on a testing/squeeze machine.

Has anyone else experienced this problem, and if so, any ideas about a fix?

Thanks for suggestions.

Cheers

AG