Version:           1.11.0 (using KDE 4.1.96)
OS:                Linux
Installed from:    Slackware Packages

When starting Kmail, all columns in the inbox mail view are automatically selected, even though they were cleared in last session.

Show columns show that Subject, Sender/Receiver, Sender, Receiver, Date, Most Recent Date, Size, Attachment etc etc all the way down to Signature and Tag List are all selected and displayed, causing the inbox to look like a complete mess.

WHen removing 90% of these settings it functions OK until I leave kmail and re-start it again, when all the columns again appear as set/checked.

Same problem regardless if I start kmail directly, or through kontact. System was upgraded to KDE 4.2RC1 from KDE 4.1.3 which functioned just perfectly!