Let me mention that the problems I cite which make Kmail unusable were encountered on fresh installs of Slackware 13.1 and 13.37 on freshly formatted partitions. All software was installed. If the major program Kmail is unusable under such circumstances I suggest that advice to do something with MySQL is misplaced. Slackware and KDE4 are not new products. They are supposed to work out of the box. They should not be dependent on user action with respect to the toally unrelated program MySQL.
If there is another place I can reach the KDE developers please give me a pointer.
John Culleton (Slackware user since the days of a tray full of floppies).