I haven't used the security editor within Visual Studio for awhile so I'm not sure when this problem started. If I create a new security project in the security editor and then try to open it, I just get a blank screen (see attached). Not sure what's going on. I can't open any previously created projects either. I've tried reinstalling SF but that didn't help. I'm running SF v1.7.3.4 on VS 2010 and Windows 7 64-bit.

-Larry