many bugs in games xbox

i upgrade my old post xbox o.g. xiso downloads sonic mega colletio n - lots of question marks where it should be games in game selectrion ?? + jade empire disk 2 and - cannot download xiso, "Download" on page is not a clickable button enter the matrix - black screen (BSoD), only audio for a brief moment, then the game freezes and locks up the console "Is that him? Is it bejdols' a bae? - Jeremy Clarkson"