Join Date:Joined: Nov 2010
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You might need to reinstall WebOS - sounds like something got touched that wasn't supposed to be.
Take a Nandroid backup, then follow the instructions in the thread in General on how to Factory Reset / Downgrade to 3.0.0, then upgrade from there to 3.0.5, and then reinstall Android, then restore your backup. Will take about 30 mins, and you should have everything working again.