(Fix) Fallout: New Vegas - Crashing, Lagging, Freezing

Fallout: New VegasThe Fallout series is amazing (especially F:NV / FNV).

One may say that it helped redefine, or at the very least, expand, the First Person Shooter (FPS) genre.

With its nice story line, good graphics, and interesting gameplay, it's easy to see how.

With the latest patches and updates, it runs pretty well on most machines, but some many require game fixes to help get rid of certain bugs and glitches being experienced.

These solutions work on all copies of the game -- cd / dvd, Steam, Origin, etc.

The operating system (OS) doesn't matter either, so these fixes will work on Windows XP, Windows Vista, Windows 7, and even Windows 8.


Solve Fallout: New Vegas Crashes, Lags, or Freezes

These fixes are pretty much the same regardless of the issue. This includes if you have a black screen on launch (launch failure), freezing after the intro / introduction opening cinematic video, a choppy / slow / stutter / low rate of frames per second, etc.

-- Validate / Revalidate your game cache
-- Run the game in Windows XP SP3 compatibility mode
-- Install the latest video card drivers (NVIDIA, ATI / AMD, Intel, etc)
-- Turn off VSYNC
-- For NVIDIA graphics cards, load the Control Panel and set the application profile for the game from “Adaptive” to “Max Performance” (under Power Management)
-- For ATI, the latest hotfix / drivers are recommended
-- Download dx9d9.dll and d3d9.dll, then put them in your game folder with the EXE (or locate the DirectX install included with the game and run it)
-- In your Fallout.ini, set iFPSClamp=0 to 60
-- In your game console, type ToggleEmotions (this has to be done every time you play the game)

Please note that if you encounter an error that says the game is not compatible with 64 bit Windows, then do not be alarmed. That error is a lie as the game works on both 32-bit and x64. Reinstall the game or run it in compatibility mode.

Fix Fallout New Vegas Sound Not Working

If you are having audio or music problems with the game, then try these:
-- In Control Panel, go to Sounds and Audio Devices and then Advanced, Speaker Settings, Performance. Set the Sample Rate Conversion Quality to Good
-- Under Task Manager (CTRL+ALT+DEL) locate Falloutnv.exe, right click it, and then set the priority as HIGH
-- Run the game under Windows XP SP3 compatibility mode

Fix Fallout New Vegas Mouse Acceleration

For those who have a jumpy mouse, laggy mouse, or microstuttering, then try the below to fix it.

Go to MY DOCUMENTS - MY GAMES and locate FalloutNV. Using Notepad, open both Fallout.ini and FalloutPrefs.ini and locate the [Controls] section using CTRL+F.

Now add the following lines to that INI file.
fForegroundMouseAccelBase=0
fForegroundMouseAccelTop=0
fForegroundMouseBase=0
fForegroundMouseMult=0

Done! If it's not saving, then the INI files are set as "Read Only". Simply right click -> Properties -> and uncheck Read-Only to solve that.

If you are having issues with your game's save file being corrupted or just Fallout: New Vegas not saving, then locate your save file and make sure it isn't set to "Read Only".


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