Best of luck.I have this same problem on my system.
The install and the game do not create my UserSettings.txt file.
I had the black screen attempting to launch the system as well.
I'm running Windows xp -64 bit on that system.
I would be curious what OS you are running and if this fixes your problem as well.
This is what I did to fix my issue.
The new UserSettings.txt file post patch contains several new instruction lines that are not in the pre-patch file.
I believe editing your UserSettings.txt file will actually get the game to successfully launch for you.
INDIVIDUAL CONFIGURATION LINES/COMMANDS THAT HAVE BEEN CHANGED:
Command: "SET RequestedNumThreads "0" been REPLACED with two different command lines added.
SET RequestedNumJobThreads "0"
SET RequestedNumWorkerThreads "0"
The following 4 command lines could be added to your UserSettings.txt file with no deletions.
SET MULTI_GPU_CHECK "1"
SET DisableFXPrecaching "1"
SET PreferExclusiveFullscreen "0"
SET MonsterTellsEnabled "1"