Last night I purchased the silencer for the 10MM pistol from the merchant in the Dinosaur in the town of Novac. Not sure if this is a widespread issue or if its been addressed on the forums, but... Upon applying the silencer mod to the DLC Weathered 10MM pistol my screen went bright pink/white. So I changed the camera to see what had happened. The resulting mod was that my pistol had become invisible and my character was surrounded with a large red block with a white exclamation point. I'm assuming this is a developer tool used to illustrate a bug, but I was extremely disappointed that I couldn't do much, since the mod is permanent I'd saved my game before I actually armed the pistol and discovered the issue. Not a huge deal, as I rarely used the gun, but obviously, DO NOT ADD A SILENCER TO THE WEATHERED 10MM PISTOL. Until there is a patch at least, unless you're really into invisible pistols that cloud your character with a large red polygon. Good times. Otherwise, the only issue I've had is my character raising and lowering his weapon randomly.

I am having the same issue, only I had used the "10MM Pistol Laser Sight" Mod. Apparently it is quite widespread. I guess it wasn't worth the pre-order at Gamestop. Also, todays patch on the 360 did not fix this issue. :brokencomputer:

The search feature is your friend. There's been more posts on this than copies of FONV sold.