1) Delete the following files and folders:
C:\Users\Mr. Grinch\AppData\Roaming\Armory\dbLog.txt
C:\Users\Mr. Grinch\AppData\Roaming\Armory\armorylog.txt
C:\Users\Mr. Grinch\AppData\Roaming\Armory\databases
2) Start your node, make sure it is synchronized with the network
3) From the command line, start ArmoryDB.exe
4) About a minute later, start ArmoryQt.exe the usual way.
If it fails, report here, post both fresh logs. Use pastebin for the logs.