Just got to Camp McNarran and once inside the terminal building, I can't enter the concourse (center of building upstairs) without the game crashing. It just crashes to desktop, I have tried about 10 times now. Here is the error I get.

Problem signature:
Problem Event Name: APPCRASH
Application Name: FalloutNV.exe
Application Version: 1.1.1.271
Application Timestamp: 4cc0aa87
Fault Module Name: FalloutNV.exe
Fault Module Version: 1.1.1.271
Fault Module Timestamp: 4cc0aa87
Exception Code: c0000005
Exception Offset: 0065cf0e
OS Version: 6.0.6002.2.2.0.256.1
Locale ID: 1033
Additional Information 1: fd00
Additional Information 2: ea6f5fe8924aaa756324d57f87834160
Additional Information 3: fd00
Additional Information 4: ea6f5fe8924aaa756324d57f87834160

I'm not able to enter the building at all once I use the intercom and give the secret code...chain crashing. Kinda pissing me off.