Morning all. I've been looking for a specific resolution for the past couple of days now since upgrading to a dual monitor setup. I've never had issues before with New Vegas, until now. I bought a VGA monitor, same spec as my current vga screen, and realised the second port on my GTX 750 was for a DVI-D 24+1 adaptor. I've only got 24+5 pin adaptors, so I had to borrow a DisplayLink adaptor from my office. The monitor itself works fine, most games (Fallout 4 etc) work without issue on either of the screens - however, New Vegas crashes as soon as it starts loading up the game itself. I can get past the intro screens, past the main menu, load an existing or start a new save, and as soon as it's about to plonk me in world, CTD. I've tried various things; - NVAC - Game Companion - Deleting all of the .ini files - Reinstalling New Vegas - Reverifying integrity of game cache via Steam - Changing res settings to match the screen output (I normally play in windowed mode for dev purposes) - Tried accessing the NVidia control panel, however there's a known issue with DisplayLink conflicting with NVidia drivers and prevents the control panel from loading properly Now the reason I know it's a problem with my monitor, is because by disabling the adaptor, and reverting to 1 screen - Ta Da! It works. If anyone can assist, that'd be hugely appreciated, Thanks, Demeggy