<LI>Turn off your console and remove the AV cable. Clean dust, re-insert the cable, power on, then check. If the problem isnt fixed we will need to try some more . <LI>The AV cable can be the source of problems in 15% o cases. To make sure that you will need to purchase a brand new one, borrow your friend's cable and plug it to your Xbox 360 <LI>The 3 tips above should've dealt with 75% o all reported problems. If they did not help you then your case falls into the 25% o problems with chipsets, heatsinks and clamps. You can find a Xbox 360 e74 repair gude and fix it yourself or send it to Microsoft.}