I recently went back to jail breaking. I downgraded to ios 5.0.1 cause I forgot to save blobs from 5.1.1. Anyway, long story short, big boss repo doesn't work. It says: " GPG error: http://apt.thebigboss.org stable release: The following signatures were invalid: NODATA 1 NODATA 2
Failed to fetch http;//apt.thebigboss.org/repofiles/cydia/dists/stable/main/binary-iphoneos-arm.bz2 Sub-process /bin/bzip returned error code (2)
Some index files failed to download, they have been ignored, or old ones used instead."
Thats what it says in the black screen with text.
Help is very much appreciated. :)