I really don't like the way karma is handled in FO3 or FNV, so I essentially duplicated a mod that was made for FO3 for FNV that removes all messages and sounds relating to karma change.
Version 2.0:
Thanks to Iv000 and Virion, apparently the HUD image file I was using was from FO3 instead of FNV, so that's fixed now.
Version 1.2:
Thanks to Krazyone432, the box that pops up when you lose karma is gone, just redownload the mod for the new version.
Installation:
Just extract the .zip to your Data directory, then activate the .esp file.
Version 2.0:
Thanks to Iv000 and Virion, apparently the HUD image file I was using was from FO3 instead of FNV, so that's fixed now.
Version 1.2:
Thanks to Krazyone432, the box that pops up when you lose karma is gone, just redownload the mod for the new version.
Installation:
Just extract the .zip to your Data directory, then activate the .esp file.