I keep getting a "can't launch" error message almost everytime I try to launch a Game on Demand. The only one that is working right now is Fable 3 and Modern Warfare 2, but my Save File on Fable 3 has gone missing since the spring update for some reason. The first time I tried to start the game it said something along the lines of my save being corrupt and it deleted my save once I clicked OK, then it just disappeared from my Hard Drive all together. I also still can't play any of my games from my disks without getting a disk unreadable error...
Some pictures. Also, I just uninstalled GTA IV and Re-Downloaded it from the Marketplace and this is what happens. + A picture of it on my memory unit.