We've had a wii for like 2 years now. Well for the past 3 months we left it off because we needed a new power cord. So we got a new power cord from an amazon store and the wii turns on again. However, no matter what game we put in, it says cannot read the disc. The WII menu will show the game, we click on the game, and then it starts, after that it the screen goes black and just says "Cannot read from disc". We've done a system update and tried over 6 games. Any thoughts? Thanks!