kdm won__t start after bootup

[Mike Mandel]

Hello!

After updating kdebase3 to the newest version,
kdm won´t start after bootup.

     which: no ${KDE_PREFIX in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin)

     starting kdm:[PID] invalid preceding regular expression

Anybody else has this problem after updating or knows a
solution?

TIA,

Mike