I just got myself back into the groove with Rez having almost completed it when it first came to xboxlive.
Recently its as though something clicked in my head and all of a sudden i understood the game much better than i ever did, problem is i just played a game from the beginning and beat level 4 (the one with the running man boss) and did not progress beyond this stage when i moved on i started at the beginning of this stage again?.
When i first got the game i got to a stage past this, now i seem to be stuck i thought it was because i was starting a saved game from stage 4, so just now i worked my way from the very start to then end of stage 4 and only took 1 hit  and it still hasnt let me start the 5th stage!!! am i blindly missing something or am i hitting a bug here this is most annoying.
All help appreciated thanks people.