When I got my Nokia E61i a couple of months back there was a media card supplied, this has a number of application that are automatically installed the first time you start the phone. Unfortunately, this was a second hand phone and I was getting an error: Unable to complete installation from memory card. to install the remaining applications, please go to Application Manager. Couldn’t figure out what the problem application was until I opened the AppManager and looked at what was coming up not installed and also had the memory card icon alongside it. There were a couple of applications including Reuter’s News. Couldn’t delete them in AppManager but I did open the card on my desktop and searched for Reuters. Sure enough, in the ‘private’ directory there was a sub-directory called ‘10202dce’. Made a backup of the directory and then deleted it from the card. Voilá! Restarting the phone went fine with no warning message.
Now, this may have worked for me but if yo’re having the same problem you might want to be a bit more selective. I’m not giving a guarantee that this will work for you and not break your phone. So be suitably warned :)