Super Mario Galaxy (NTSC-U) does not boot

[ultragunner]

Super Mario Galaxy does not boot on Gecko OS 1.7b. It just shows a blank screen. Gecko Region Free 1.5 can boot Super Mario Galaxy. I wonder what's  the problem? Isnt Gecko OS 1.7b supposed to the successor to Gecko Region Free 1.5   

[Starman Deluxe]

I know, I have the same Problem! >:( >:(

[Panda On Smack]

have you tried different settings?

[Starman Deluxe]

No but I'll try right now ;D

Edit: doesn't work still