so i have just recently brought a new computer with good ram and stuff but ever since i have installed league of legends around the five minute mark the game flashes and then goes extremely bright and all the units and scenery go to minimal graphics the way i have found to combat this is to change the resolution regularly but this just puts off the problem by another 5 minutes or so. if anyone has a solution for this problem i would really appreciate it thanks

Hi, what type of graphics card do you have? What version?
Also, does your system have switchable graphics?
Have you updated your drivers? Directx?
Please post computer specs.

ok thanks for helping
intel core i5-3210m cpu @ 2.50GHz, 2501 Mhz, 2 cores, 4 logical processors with 8 gb ram and 2gb nvidia graphics card 640m
i hope thats what u want and i have the most recent update of directx