Okay here's the log file from just a while ago. Ran 32bit OBS, selected the Elgato (Using as a global source). I tried the preview, and same thing (One moment please...then says no device found). Then tried to configure, nothing pops up.
19:41:06: Open Broadcaster Software v0.553b - 32bit (´・ω・｀)
19:41:06: -------------------------------
19:41:06: CPU Name: AMD Phenom(tm) 9650 Quad-Core Processor
19:41:06: CPU Speed: 2300MHz
19:41:06: Physical Memory: 4095MB Total, 4095MB Free
19:41:06: stepping id: 3, model 2, family 15, type 0, extmodel 8, extfamily 0, HTT 1, logical cores 4, total cores 4
19:41:06: monitor 1: pos={1440, 0}, size={1842, 1026}
19:41:06: monitor 2: pos={0, 0}, size={1440, 900}
19:41:06: Windows Version: 6.1 Build 7601 S
19:41:06: Aero is Enabled
19:41:06: -------------------------------
19:41:06: OBS Modules:
19:41:06: Base Address Module
19:41:06: 00A20000 OBS.exe
19:41:06: 54480000 OBSApi.dll
19:41:06: 5C760000 DShowPlugin.dll
19:41:06: 60640000 GraphicsCapture.dll
19:41:06: 5F280000 NoiseGate.dll
19:41:06: 5C260000 PSVPlugin.dll
19:41:06: ------------------------------------------
19:41:06: Adapter 1
19:41:06: Video Adapter: NVIDIA GeForce GTX 550 Ti
19:41:06: Video Adapter Dedicated Video Memory: 1025179648
19:41:06: Video Adapter Shared System Memory: 3221106688
19:41:06: =====Stream Start: 2013-08-30, 19:41:06===============================================
19:41:06: Multithreaded optimizations: On
19:41:06: Base resolution: 1920x1080
19:41:06: Output resolution: 1280x720
19:41:06: ------------------------------------------
19:41:06: Loading up D3D10 on NVIDIA GeForce GTX 550 Ti...
19:41:06: C:/Users/Chris/AppData/Roaming/OBS/shaderCache/shaders/DrawTexture.pShader.blob
19:41:06: C:/Users/Chris/AppData/Roaming/OBS/shaderCache/shaders/DrawSolid.pShader.blob
19:41:06: C:/Users/Chris/AppData/Roaming/OBS/shaderCache/shaders/DownscaleBilinear1YUV.pShader.blob
19:41:06: Playback device {0.0.0.00000000}.{e66833f6-5906-4711-9e9d-3c7bc7cfcdd1}
19:41:06: ------------------------------------------
19:41:06: Using desktop audio input: Speakers (Realtek High Definition Audio)
19:41:07: Using quad speaker setup
19:41:07: ------------------------------------------
19:41:07: Audio Encoding: AAC
19:41:07: bitrate: 128
19:41:07: ------------------------------------------
19:41:07: device: Elgato Game Capture HD,
19:41:07: device id {39F50F4C-99E1-464a-B6F9-D605B4FB5918},
19:41:07: chosen type: UYVY, usingFourCC: false, res: 1280x720 - 1280x720, frameIntervals: 333333-333333, fourCC: 'UYVY'
19:41:07: audio device: Microphone (3- Logitech USB Hea,
19:41:07: audio device id (null),
19:41:07:
19:41:07: C:/Users/Chris/AppData/Roaming/OBS/shaderCache/plugins/DShowPlugin/shaders/UYVToRGB.pShader.blob
19:41:07: device audio info - bits per sample: 16, channels: 2, samples per sec: 44100, block size: 4
19:41:07: Using directshow input
19:41:07: C:/Users/Chris/AppData/Roaming/OBS/shaderCache/shaders/DrawTexture_ColorAdjust.pShader.blob
19:41:07: ------------------------------------------
19:41:07: Video Encoding: x264
19:41:07: fps: 50
19:41:07: width: 1280, height: 720
19:41:07: preset: superfast
19:41:07: CBR: yes
19:41:07: CFR: no
19:41:07: max bitrate: 4000
19:41:07: buffer size: 4000
19:41:07: ------------------------------------------
19:41:07: MMDeviceAudioSource: Frequency for device 'Speakers (Realtek High Definition Audio)' is 705600, samples per sec is 44100
19:41:07: Syncing audio to video time (WARNING: you should not be doing this if you are just having webcam desync, that's a separate issue)
19:41:07:
19:41:07: Profiler result for the last frame:
19:41:07: ==============================================================
19:41:07: frame - [time: 22 ms (cpu time: 15.6 ms)]
19:41:07: | frame preprocessing and rendering - [time: 21.797 ms (cpu time: 15.6 ms)]
19:41:07: | | scene->Preprocess - [time: 0.003 ms (cpu time: 0 ms)]
19:41:07: | video encoding and uploading - [time: 0.195 ms (cpu time: 0 ms)]
19:41:07: | | flush - [time: 0.191 ms (cpu time: 0 ms)]
19:41:07: ==============================================================
19:41:07:
19:41:07:
19:41:07: Profiler result for the last frame:
19:41:07: ==============================================================
19:41:07: frame - [time: 21.157 ms (cpu time: 31.2 ms)]
19:41:07: | frame preprocessing and rendering - [time: 21.013 ms (cpu time: 31.2 ms)]
19:41:07: | | scene->Preprocess - [time: 0.003 ms (cpu time: 0 ms)]
19:41:07: | video encoding and uploading - [time: 0.137 ms (cpu time: 0 ms)]
19:41:07: | | flush - [time: 0.132 ms (cpu time: 0 ms)]
19:41:07: ==============================================================
19:41:07:
19:41:07:
19:41:07: Profiler result for the last frame:
19:41:07: ==============================================================
19:41:07: frame - [time: 20.158 ms (cpu time: 15.6 ms)]
19:41:07: | frame preprocessing and rendering - [time: 20.017 ms (cpu time: 15.6 ms)]
19:41:07: | | scene->Preprocess - [time: 0.002 ms (cpu time: 0 ms)]
19:41:07: | video encoding and uploading - [time: 0.134 ms (cpu time: 0 ms)]
19:41:07: | | flush - [time: 0.132 ms (cpu time: 0 ms)]
19:41:07: ==============================================================
19:41:07:
19:41:46: Total frames rendered: 1915, number of late frames: 7 (0.37%) (it's okay for some frames to be late)
19:41:48:
19:41:48: Profiler results:
19:41:48:
19:41:48: ==============================================================
19:41:48: frame - [100%] [avg time: 4.154 ms (cpu time: avg 3.779 ms, total 7238.45 ms)] [avg calls per frame: 1] [children: 99.8%] [unaccounted: 0.217%]
19:41:48: | frame preprocessing and rendering - [40%] [avg time: 1.663 ms (cpu time: avg 1.311 ms, total 2511.61 ms)] [avg calls per frame: 1] [children: 18.4%] [unaccounted: 21.6%]
19:41:48: | | scene->Preprocess - [18.4%] [avg time: 0.766 ms (cpu time: avg 0.61 ms, total 1170.01 ms)] [avg calls per frame: 1]
19:41:48: | video encoding and uploading - [59.7%] [avg time: 2.482 ms (cpu time: avg 2.468 ms, total 4726.83 ms)] [avg calls per frame: 1] [children: 58.3%] [unaccounted: 1.42%]
19:41:48: | | flush - [3.92%] [avg time: 0.163 ms (cpu time: avg 0.048 ms, total 93.602 ms)] [avg calls per frame: 1]
19:41:48: | | CopyResource - [0.602%] [avg time: 0.025 ms (cpu time: avg 0.016 ms, total 31.2 ms)] [avg calls per frame: 0]
19:41:48: | | conversion to 4:2:0 - [0.241%] [avg time: 0.01 ms (cpu time: avg 0.008 ms, total 15.6 ms)] [avg calls per frame: 0]
19:41:48: | | call to encoder - [53.5%] [avg time: 2.222 ms (cpu time: avg 2.378 ms, total 4555.23 ms)] [avg calls per frame: 0]
19:41:48: | | sending stuff out - [0.0722%] [avg time: 0.003 ms (cpu time: avg 0 ms, total 0 ms)] [avg calls per frame: 0]
19:41:48: | Convert444Threads - [949%] [avg time: 39.427 ms (cpu time: avg 3.071 ms, total 5881.24 ms)] [avg calls per frame: 1]
19:41:48: ==============================================================
19:41:48:
19:41:48: =====Stream End: 2013-08-30, 19:41:48=================================================
