hey hey. Accidentally patched my system this morning with the System 4.1U update from the GH 5 disc. The actual game won't run. Got everything that I can tell up to date -- CIOSCorp 3.3, even patched to cIOS rev 14.... tested Indiana Jones and the Staff of Ages right afterwards and it boots perfectly, so I know that it's all good. did a good slow burn and everything. Did some research and went back the last few weeks (3ish) and it seems like this is a common problem. Haven't tested other Guitar Hero titles but after reading what others have said, will do so shortly. Thanks in advance!