I was wondering, does it actually make your firmware v4.0, or does it just mock the features that 4.0 has? I went from firmware 3.2u to 4.0u using the "ULTIMATE Guide to 4.0..". Now, when i have the "Skip Disk Update" hack disabled, it ALWAYS asks me to update my firmware. Even when i put a game in from firmware 2.x, it asks me to update the firmware. Why would it ask me to update firmware when i'm running firmware 4.0?