Hacking Help with vWii hack

[joepassive]

I did Indiana Pwns, and Installed ciOS 294 rev 37 and 38.
Right now, Wiiflow loads my USB drive....the menu of the games works like a charm.
BUT...
All I get is black screen. what is the issue?
Is nand emulation needs to be off?
USBLoader GX doesnt work...