I updated my Fedora Core. During this, some file got corrupted. The
text says something like that it is or corrupted or hasn't been
signed. I accidently choose the accept the file. 

1. During installing it stopped, because this file was corrupted. I
think an automatic that if the file is really corrupted, is the
easiest way and give the user an idea of what's going to happen is you
continue with a corrupted file.

2. After restarting rhn, it didn't found any new updates, but the
update was stopped right after a few files (from 138 files). The
graphical interface doesn;t track wich files have been installed and
which not.

Ok, i ran rpm from the commandline and everything is fine for me at
this moment :-)

Success!
Mathijs