#2418 Wii Remote shuts off and screen goes black and remains until i shut down the console

[Leo James]

when i try to boot any type of game off of my 32 gb flash drive my screen goes black and my wii remote shuts off. i have to hold the power button on the console to shut it down so i can get out of it and when i turn it back on it loads into bootmii. i tried reinstalling my d2x cIOS by referring how i had originally installed it using the video i used; https://www.youtube.com/watch?v=s1NekiCNrzk (at 8:22)
and saw no change. i would like to note that before, when i tried running wii sports off of my sd card, it worked fine. Could anyone please help me out? thanks!