package manager says KDEbase-runtime package is broken, but fails to remove it

[Elf]

Binary package hint: kdebase-runtime

I've been using KDE, but had a number of unexplained crashes. After today's crash, I restarted in Gnome.

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 8.10
ErrorMessage: trying to overwrite `/usr/lib/kde4/libexec/kdesu', which is also in package kdesudo
NonfreeKernelModules: ath_hal
Package: kdebase-runtime 4:4.2.0-0ubuntu1~intrepid1
SourcePackage: kdebase-runtime
Title: package kdebase-runtime 4:4.2.0-0ubuntu1~intrepid1 failed to install/upgrade: trying to overwrite `/usr/lib/kde4/libexec/kdesu', which is also in package kdesudo
Uname: Linux 2.6.27-9-generic i686