While playing on my world in LAN with my brother, all of the sudden the world turns into a black, purple, and invisible mess. I was in creative, while he was in survival but not affected (LAN world set to adventure mode). Opening inv, all the blocks and tabs had no images, just the inv template grey. Water was one of the only textures/blocks visible and unaffected. My display driver crashed once, and I had a memory leak I believe too once also.

Thanks for the help!