1.1.5 have permission fixed for busybox. Even if I had no problem before.
In terminal emulator, type busybox to see if its install correctly.
And I don't think there is a need to update SuperUser, after all the only task it does is to run a program as su.
i have also removed the groups icon. that was annoying.
@undead, i'm curious to see how you did that. it maybe a better solution.