kb.exe has stopped working on startup

[rattaplan]

I've got exactly the same problem.
Downloaded the game from Direct2Drive and after a brief black screen I get a "kb.exe has stopped working" error. Tried running it as an administrator, as well, to no avail. I'm on Win 7.

FYI, the Zip file unzipped without a problem so it's doubtful that the file was corrupted during download.

Here's some extra information about the error (in case it's useful).

Problem Event Name: APPCRASH
Application Name: kb.exe
Application Version: 0.0.0.0
Application Timestamp: 4a51a438
Fault Module Name: kb.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 4a51a438
Exception Code: c0000005
Exception Offset: 0023b051
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1043
Additional Information 1: b856
Additional Information 2: b85601dbefe83727fb9d28848a0ac799
Additional Information 3: 7b15
Additional Information 4: 7b156abb17e114d87a57441eb6c74993