I've been trying to diagnose this myself, but no amount of hunting around or trial and error seems to be working... so I'm just going to ask for the answer. I need to be able to load discs from the Disc Channel using System Menu 4.2. The Preloader hack that is supposed to force IOS 249 to be used as the system menu is not working, and I can't seem to figure out why. If it's simply a current incompatibility issue, I'll admit I haven't checked into it. If it's something else, I'm open to suggestions.