Re-Installing Win7 - problem with bitlocker

I encrypted my laptop drive with bitlocker a couple of months ago. I'm having some major problems with my laptop right now and have tried everything to fix it and have decided that the only way is to reinstall Windows. I have Win7 RC1 btw. I have to disable bitlocker on the drive before it will let me install windows, but every time I go into the bitlocker management, either through the control panel or through the start button search, it stops responding and I have to restart my computer. Does anyone know how to get around bitlocker or how to disable it in a different way so that I can install windows? Or do I have to buy a new drive?

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