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Ok, I know this is not going to be what you wanted to hear, but the truth none the less, so its what I can give you.
You will need to reset it, as it seems that the radio is corrupt. Since the radio is at a system level, you do not have access to go in and clear it out yourself and only with a reset can you do that.
However, a reset isn't as bad as it seems. As long as you have a Google account synced to your device your contacts, calendar, etc., will be re-synced to the device after you run the initial setup again as long as you sign in with the same Google/Gmail account.
Any apps you have paid for, you can get back after you reset the device by opening the Market, pressing Menu on the phone and choosing "My Apps".
As far as any data that is stored on the SD Card(images, music, etc.), it will not be erased. Only the phones internal memory is formatted.
If you have any further questions or this solution does not resolve the issue, please feel free to let me know...
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