Today I tried about 12 Times to install some updates ... without any result:
First problem: The software updater needs about 20 to 30 Minutes to check for the updates, which seems not normal to me (normally not more than 2 minutes).
Second problem: After authenticate for updates with password there comes the following info: "software updater: Requires installation of untrusted packages. This requires packages from unauthenticated sources." When I click »okay« the software updater disappears.
What can I do to install the updates?