logfile seems not affected at first, but please notice that the double quotes " are not closed, so this is maybe my text editor that strips the garbage at the end :
 
Debug [Controller]: ControllerManager: Setting up devices 
Debug [Controller]: Scanning PortMIDI devices: 
Debug [Controller]:  Found output device # 0 Microsoft MIDI Mapper 
Debug [Controller]:  Found output device # 1 Microsoft GS Wavetable Synth 
Debug [Controller]: Scanning HSS1394 devices: 
Debug [Main]: Starting LibraryScanner thread. 
Debug [Controller]:    Nodes detected: 0 
Debug [Main]: SoundManager::setupDevices() 
Debug [Controller]: Scanning HID devices: 
Debug [Main]: SoundDevicePortAudio::open() "7, Haut-parleurs (Conexant 20585 SmartAudio HD)" 
Debug [Main]: framesPerBuffer: 1024 
Debug [Main]: Requested sample rate:  44100 Hz, latency: 23.22 ms 
Debug [Main]: Output channels: 2 | Input channels: 0 
Debug [Main]: Opening stream with id 7 
Debug [LibraryScanner 1]: LibraryHashDAO::initialize LibraryScanner(0xb960af6200, name = "LibraryScanner 1") "LIBRARY_SCANNER" 
Debug [LibraryScanner 1]: CueDAO::initialize LibraryScanner(0xb960af6200, name = "LibraryScanner 1") "LIBRARY_SCANNER" 
Debug [LibraryScanner 1]: TrackDAO::initialize LibraryScanner(0xb960af6200, name = "LibraryScanner 1") "LIBRARY_SCANNER" 
Debug [LibraryScanner 1]: DirectoryDAO::initialize LibraryScanner(0xb960af6200, name = "LibraryScanner 1") "LIBRARY_SCANNER" 
Debug [LibraryScanner 1]: LibraryScanner event loop starting. 
Debug [LibraryScanner 1]: LibraryScanner::slotStartScan 
Debug [Main]: Opened PortAudio stream successfully... starting 
Debug [Controller]: Found 0xb960d1c530 0xb94d60ea20 "r304" S/N 0x0 "Interface 1" 
Debug [Controller]: Found 0xb960d1d800 0xb94d60e8c0 "r304" S/N 0x0 "Interface 1" 
Debug [Controller]: Found 0xb94d60e960 0xb95b6d58c0 "r17152" S/N 0x0 "Usage Page 1 Usage 2" 
Debug [Controller]: Found 0xb960d1d690 0xb94d60e880 "r304" S/N 0x0 "Interface 1" 
Debug [Controller]: Found 0xb960d1d700 0xb95b6d5340 "r304" S/N 0x0 "Interface 0" 
Debug [Controller]: ControllerManager::getControllerList 
Debug [Controller]: Loading resources from  "C:/Program Files/Mixxx/" 
Debug [Controller]: Searching for controller preset "04192005
Debug [LibraryScanner 1]: upgrade filename is  "C:/Users/sblaisot/Local Settings/Application Data/Mixxx/DBUPGRADED" 
Debug [Controller]: Loading controller preset from "C:/Users/sblaisot/AppData/Local/Mixxx/controllers/04192005
Debug [LibraryScanner 1]: Committing transaction on "LIBRARY_SCANNER" result: true 
Debug [LibraryScanner 1]: Legacy importer took 0 ms
Debug [Controller]: Loading resources from  "C:/Program Files/Mixxx/" 
Debug [Controller]: Searching for controller preset "04192005
Debug [Controller]: Loading controller preset from "C:/Users/sblaisot/AppData/Local/Mixxx/controllers/04192005
Debug [Controller]: Loading resources from  "C:/Program Files/Mixxx/" 
Debug [Controller]: Searching for controller preset "Logitech_USB_Optical_Mouse
Debug [Controller]: Loading controller preset from "C:/Users/sblaisot/AppData/Local/Mixxx/controllers/Logitech_USB_Optical_Mouse
Debug [Controller]: Loading resources from  "C:/Program Files/Mixxx/" 
Debug [Controller]: Searching for controller preset "04192005
Debug [Controller]: Loading controller preset from "C:/Users/sblaisot/AppData/Local/Mixxx/controllers/04192005
Debug [Controller]: Loading resources from  "C:/Program Files/Mixxx/" 
Debug [Controller]: Searching for controller preset "USB_Multimedia_Keyboard
Debug [Controller]: Loading controller preset from "C:/Users/sblaisot/AppData/Local/Mixxx/controllers/USB_Multimedia_Keyboard
Debug [Controller]: Controller polling stopped.