Nero 6 install problems

had nero5 OEM . Tried to install Nero 6 demo and got the message error during installation of components “Cover Designer General”.I tried to uninstall 5 and it didnt remove all the files so I reinstalled and tried to uninstall from the disk.Same error So I borrowed a full Nero 6 and it started to install ,Said there were still files and they would be deleted and then the installation error came up again. Running XP Pro Any help would be appreciated

best thing to do is start a fresh if you can ,format your drive and reinstall windows cause you will prob find error else ware as well