Here are some steps you can take to fix the red outline issue in your game:
- On your desktop, go to your NVIDIA control panel (you can find it on your desktop or from the "Start" button);
- Find the settings for "Anisotropic Filtering";
- Change the setting to 8x to 4x to 2x to off to see if one of these settings removes the red outlines.
Please note that if you have the game running, changing Anisotropic settings in your NVIDIA control panel will not take effect. You must restart the game in order for the change to happen.
Check out the forum thread linked below for a discussion (and potential fix) for your graphics issue.