I've been getting a black screen with castlevania rebirth when lauching it with usbloader gx from my emunand. it occurs right after the konami logo but it is not a lock up, as i can still use my home button and access those options and reset my wii. if i install it to the actual nand and run it, it works fine. i got a lot of other wiiware that seems to be functioning just fine inside of gx. I tried researching to verify if it was possibly just an incompatibility issue, or perhaps theres a setting im missing. any help would be much appreciated. thanks!