At first I thought my glitch was just a dumb Minecraft glitch, Then I played the non-modded version with no UI trouble. (UI trouble as follows- flashing vignette, blinking items, random X-ray appearances for a split second, lower FPS, LOTS of flashing items in menu including the menu itself.) So then I started to think one of my mods was being stupid, so I stopped running all of the mods except for the default stuff like the "coder pack" and the two forge items. The UI glitch still was occurring. I can't find anything on the web, and my video card is up to date. Got any answers?