I flashed my N800 yesterday and everything is working great, except that the Application Manager has the map application listed on the Check for Updates page. It says version 2.2.6.377-1 is available. But when click Update the error comes up:

Unable to install.
Software contains updates to packages installed from a different source and is likely to harm the system. Contact software author.

The log says:

apt-worker: domain change: map(nokia-system -> unsigned)

Anyone know what that error means?

Under installed applications it tells me that I already have map version 2.2.6.377-1 installed.

It seems that the Application Manager is confused. Any way to clear that?