After doing some rudimentary Googling, I discovered that I could get it to launch by running it as an Administrator, but I'd prefer to not have to do that for fairly obvious reasons.
This system is running a very fresh install of Win7 SP1 x64. The crash info in the "problem details" pane is as follows:
Code: Select all
  Problem Event Name:	CLR20r3
  Problem Signature 01:	4DO.exe
  Problem Signature 02:	1.3.2.3
  Problem Signature 03:	5247c46e
  Problem Signature 04:	mscorlib
  Problem Signature 05:	4.0.30319.34209
  Problem Signature 06:	534894cc
  Problem Signature 07:	4527
  Problem Signature 08:	13c
  Problem Signature 09:	System.UnauthorizedAccess
  OS Version:	6.1.7601.2.1.0.768.3
  Locale ID:	1033

