The missus bought me a 360 for christmas, so I opened it just to see if it all worked (she let me play on it for the day, dont want to open it on christmas day and find it doesnt work). The first time I turned the thing on it flashed three red segments and nothing happened. I unclipped the HDD and firmly shoved it back on and the console started up. Setting up the profile, changed the screen settings to 720p and it crashes and flashes three red segments again, restart then everything was fine. From then on its been working fine but am not impressed how flakey it seems to be from new.