The second error happened to a different user on a different computer during the Mage guild quest line. After the "class," that the mage guy gives when he tells us to go to the ruins and meet him in a couple of hours he doesn't show up. I also had to reload a bunch of times and mess with the game until it worked. Both PCs are state of the art and the game is properly installed.
Coupled with the notorious magic resistance glitch the above is just unacceptable for a major studio. These errors should have been found and fixed in the beta. Did Bethesda release the game to users to test? Did they do their testing entirely internally? Did they test this game at all?