Thanks again for responding. I had purchased a retail Leopard 10.5.6. I used NBI 0.8.3final. I read that a possible solution to possible BIOS problem was to use 8.4, which in turn requires 10.6 or above. However, I was trying to avoid having to buy another version/would like to feel satisfaction of getting it working with the money i had already invested--10v, ram, wifi N, leopard. So I was considering downgrading my BIOS.
But it appears I may have to suck-it-up and buy Snow Leopard so i can use 0.8.4 instead. When you say using 10.5.6 is "probably [my] problem," what do you mean exactly? What about my setup makes it a problem to use 10.5.6? My BIOS? I'm looking for and appreciate any thoughts/insight. Many others have successfully done it with previous BIOS--A05 and A04.