I installed multiman, rogero, and a few emulators through the 'install packages' option.
When I try to run any homebrew the ps3 goes to a black screen, and just sits there. I can't escape it by holding the home button, I have to power off the console with the power switch on the back. I'm not even getting the backup manager, or emulator to load.
I understand what you're saying about when a BM returns you to the XMB, that isn't what's happening. I can't load the backup manager application.