Last night, I upgraded to 4.1 preserving my baseband w/ TinyUmbrella - no problems. I downloaded Greenpois0n, and proceeded through the JB steps. I received no error messages, however, the JB obviously did not work (I do not have Loader/Cydia on my springboard, and I do not have the tell-tale pixels when booting the device). Again, I saw no error messages, etc. Any clues as to what the issue is? I've read up on a few issues w/ Greenpois0n and Limera1n, but this is news to me. The only possible issue that I can see it that I simply clicked on GP to launch it, rather than right click -> run as administrator. That seems like a long shot as the rest of the process went as it should have... Any work-arounds would be appreciated. Thanks!