Kyzor (Raeyok) is having constant Poloygon problems (ie polygons stretch all across the screen) and is having to do flushTextureCache(); every 5 minutes or so.
He also then said that the skybox started shaking.
I told him to try and run a server with no addons but I he has not done that yet, though he has disabled most addons, keeping custom brick packs and default addons.
It's probably just him, for I have not experienced any of these problems nor has anyone complained of similar problems.