Because the screen is black, I think that the Online Activation failed. I think you will need to do a reinstall as explained in KB#685.
Check-in to Your Profile > Product > Customer Support > Search KB or Submit New Ticket. Do a search for 685.

Along with following KB #685, I recommend you re-download the installer (in case it is corrupt) and possibly do an Offline Activation (just follow the instructions when selecting it). That should get it working.