followed mauifrogs soft mod any wii guide to the letter. now wii is 4.1U. but when i click start in the latest usbloader gx, i got blackscreen. I'm using usbloader gx channel and WD 320gb external hdd formatted in two partitions, wbfs partition(set active) and fat32. how can I remedy this?

neogamma works fine using same external wd320gb hdd.