Tried to run Redsn0w on my wifes 3G with firmware 3.2.1. Redsn0w was the latest version. Loaded up fine but when i tried to run anything the screen would flicker a bit and any apps/games with anything moving would be really slow and still flicker away. Reloaded the firmware and also sourced another modded firmware to try but all just the same. Ended up restoring back to Apple 3.2.1 and isnt jailbroken now and works fine. Any ideas--forgot to mention the Cyndia app was white instead of the rown as normal to start with but was ok when reloaded.