Instance/Dungeon NVIDIA Driver 320.49 Crash

I've been playing through on multiple characters leveling with quite a few hours of play time and have had no problems with video crashes. However I just did a dungeon for the first time and the driver crashed and closed the client. I logged back in and brought the settings to low, and the problem still occurred. This only happens in dungeons; guildhests and story questing instances do not have this problem. Even in large scale fates the game runs fine with no issues. There is no error message shown. The driver simply crashes out and the client closes. Was wondering if anyone else has had this issue, and hopefully has found a solution.

My GPU is NVIDIA GeForce GTX 550Ti running the latest stable driver 320.49.