Bug Report 32 bit runs fine, 64 bit gives the following-

[Altered_Ghecko]

OBS has encountered an unhandled exception and has terminated. If you are able to
reproduce this crash, please submit this crash report on the forums at
http://www.obsproject.com/ - include the contents of this crash log and the
minidump .dmp file (if available) as well as your regular OBS log files and
a description of what you were doing at the time of the crash.

This crash appears to have occured in the 'c:\program files\obs\obs.exe' module.

**** UNHANDLED EXCEPTION: c0000005
Fault address: 000000013FDF3ADD (c:\program files\obs\obs.exe)
OBS version: Open Broadcaster Software v0.613b
Windows version: 6.1 (Build 7601) Service Pack 1
CPU: AMD Phenom(tm) II X4 965 Processor

Crashing thread stack trace:
Stack EIP Arg0 Arg1 Arg2 Arg3 Address
000000000ED8F350 000000013FDF3ADD 0000000000000001 00000000003EF308 0000000000000000 000000000ED8F480 obs.exe!GlobalSource::GetSize+0xd
000000000ED8F380 000007FEEDE3518C 3F86BCA23F864B8A 000004E405B9AC01 3F86BCA23F864B8A 000004E405B9AC01 obsapi.dll!Scene::Render+0xec
000000000ED8F4C0 000000013FE0B285 0000000000000000 0000000000000000 0000000000000000 0000000000000000 obs.exe!OBS::MainCaptureLoop+0xd35
000000000ED8F950 000000013FE08E89 0000000000000000 0000000000000000 0000000000000000 0000000000000000 obs.exe!OBS::MainCaptureThread+0x9
000000000ED8F980 0000000077AC652D 0000000000000000 0000000000000000 0000000000000000 0000000000000000 kernel32.dll!0x77ac652d
000000000ED8F9B0 0000000077BFC541 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ntdll.dll!0x77bfc541

A minidump was saved to C:\Users\Spastic\AppData\Roaming\OBS\crashDumps\OBSCrashDump2014-03-14_4.dmp.
Please include this file when posting a crash report.

List of loaded modules:
Base Address Module

 

[Videophile]

Are you running a 64-bit version of Windows?

 

[R1CH]

He wouldn't be able to run OBS if he wasn't.