I had downloaded the faithful 32x32 and after about 10 minutes of using it, the screen starting being glitchy. I thought it was a bug with the texture pack and when i tried switching back to the normal texture pack, the screen was still being glitchy. By glitchy, I mean players flashing, the hotbar flashing, certain blocks flashing, the center "x" flashing, and it gets really annoying after a while.

Thanks!