I broke my evo and then go another and since then i haven't been able to turn off sense at will.
You must not have ever done any software updates because that ability was removed with one of the first updates.
However, if you download one of the many available launcher apps from the market you can use that launcher instead of sense.
Sent from my HTC EVO 4G with Tapatalk
Sorry to hear you're having problems. But I have no idea what you just said.