gnome-system-log reports various files not found in Karmic when upgraded from Jaunty

When I start gnome-system-log via System --> Administration --> Log file viewer (or run gnome-system-log from the terminal) I get various file not found errors in the application:

Could not open the following files:
/var/log/auth.log.0: Error stating file '/var/log/auth.log.0': No such file or directory
/var/log/btmp: You don't have enough permissions to read the file.
/var/log/daemon.log.0: Error stating file '/var/log/daemon.log.0': No such file or directory
/var/log/debug.0: Error stating file '/var/log/debug.0': No such file or directory
/var/log/syslog.0: Error stating file '/var/log/syslog.0': No such file or directory
/var/log/user.log.0: Error stating file '/var/log/user.log.0': No such file or directory
/var/log/messages.0: Error stating file '/var/log/messages.0': No such file or directory
/var/log/kern.log.0: Error stating file '/var/log/kern.log.0': No such file or directory

The files are in fact non existent.
This doesn't happen when I run "gksudo gome-system-log", it also doesn't happen on fresh Karmic installs (only if upgraded from Jaunty)

ProblemType: Bug
Architecture: amd64
Date: Fri Nov 13 04:12:06 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: vmnet vmci vmmon nvidia
Package: gnome (not installed)
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: meta-gnome2
Uname: Linux 2.6.31-14-generic x86_64