Killingfloor crashes on start up

[Z4K474K]

Hey all;
I'm experiencing an error similar to the one described in this thread.

It comes up with a Critical Error window shortly after the splash screen shows up and gives this message:

 Build UT2004_Build_[2004-11-11_10.48]

OS: Windows NT 6.1 (Build: 7601)
CPU: AuthenticAMD Unknown processor @ 3010 MHz with 4095MB RAM
Video: ATI Radeon HD 4800 Series (1107)

Failed to enter OK: Can't find file 'OK'

History: UGameEngine::Init <- InitEngine <- FMallocWindows::Free <- FMallocWindows::Free

What I have done so far:
Delete User.ini and KillingFloor.ini from C:\Program Files (x86)\Steam\steamapps\common\killingfloor\System
Verify game cache from in steam.
Re install the game completely (and delete the entire folder of killing floor from C:\Program Files (x86)\Steam\steamapps\common\ because there were some files still lying around in there)
Reinstall my graphics drivers.

I'm not sure where to go from here. I've searched around on the web and only seen 1 other description of this error, but the guy said he fixed it by deleting KillingFloor.ini, which hasn't worked for me.

Here is the .log contents:

Log: Log file open, 12/15/11 01:11:48
Init: Name subsystem initialized
Init: Detected: Microsoft Windows NT 6.1 (Build: 7601)
Init: Version: 3339 (128.29)
Init: Compiled: Dec  9 2011 15:21:41
Init: Command line:   OK
Init: Character set: Unicode
Init: Base directory: c:\program files (x86)\steam\steamapps\common\killingfloor\System\
Init: Ini:KillingFloor.ini   UserIni:User.ini
Init: Build label:  Build UT2004_Build_[2004-11-11_10.48]
Init: Object subsystem initialized
Localization: No localization: KillingFloor.General.Start (int)
Log:     aticfx32.dll/ATI Radeon HD 4800 Series
Log: Game class is 'KFCinematicGame'
Log: Bringing Level Entry.myLevel up for play (0) appSeconds: 1.622000...
ScriptLog: GameInfo::InitGame : bEnableStatLogging False
Log: Browse: OK?Class=Engine.Pawn?Character=Corporal_Lewis?team=1?Sex=M?Name=Z4K474K
Warning: Failed to load 'OK': Can't find file 'OK'
Warning: Failed to load 'Level None.MyLevel': Can't find file 'OK'
Critical: Failed to enter OK: Can't find file 'OK'
Critical: Windows GetLastError: The system cannot find the path specified. (3)
Exit: Executing UObject::StaticShutdownAfterError
Exit: Executing UWindowsClient::ShutdownAfterError
Critical: UGameEngine::Init
Critical: InitEngine
Critical: FMallocWindows::Free
Critical: FMallocWindows::Free
Localization: No localization: Window.IDDIALOG_CrashBox.IDC_CrashBox (int)
Exit: Exiting.
Log: FileManager: Reading 0 GByte 36 MByte 160 KByte 426 Bytes from HD took 0.132000 seconds (0.087000 reading, 0.045000 seeking).
Log: FileManager: 0.049000 seconds spent with misc. duties
Uninitialized: Name subsystem shut down
Uninitialized: Log file closed, 12/15/11 01:13:18

Any help would be greatly appreciated!!!

Z

[Morello]

Right-click Killing Floor in Steam -> Properties -> Set Launch Options and delete what is in there (probably "OK") and click OK, and try playing again.

[Z4K474K]

awesome that worked, thanks!

I wonder how "OK" got into launch options....

Z