Solaris Update Manager: I'm officially screwed

Before, it was only the NVidia driver that got ticked off by new XOrg version. But among other things that I downloaded there was an update for GNome itself. Today this thing stopped working. Crap... how am I supposed to fix it? Just try rebooting several times and pray it mends? Digging through messageboards in search of a solution does no longer sound like fun way to spend weekend.

Update: rebooting couple of timed did fix it. I wonder how many reboots are left for me to see the system acting deterministically again. OTOH, life is now full of surprises when it comes to booting Solaris...