On my 360 i have noticed i am getting graphical glitches when the game starts. For example, the game loads then say 5 seconds or so later the details of textures kick in. I notice this alot with Mass Effect but also Medal of Honor & PG4. The graphics are fine after this and only happens just when i load a level or start next one. Is this normal on these games? On my 3rd 360 from launch with a replaced motherboard in it at mow.