Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
How To Fix CUI Error In Mac OS 10.7.3 Update
Yesterday we reported that Apple released Mac OS 10.7.3 to the public. Soon after we started getting reports that the update was causing apps to crash , hardware becomes unrecognisable and also a CUI Error (shown in the image below). Apple have said they are addressing this but in the mean time we have the instructions below which will fix the CUI error for you.
- Download Mac OS X 10.7.3 Combo Updater (direct link)
- Run the 10.7.3 Combo Updater on top of the existing 10.7.3 installation
If you can’t get to the desktop of the Mac in question, you can boot it with Target Disk Mode(Firewire or Thunderbolt required), and then point the 10.7.3 Combo Update at the troubled Mac and install it that way.
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