Lion developer preview 4 will not install

I am trying to update to Mac OS X Lion developer preview 4. I am currently running developer preview 3. When i click "install", it tells me "This software cannot be verified. It may have been corrupted or tampered with during downloading". How can I fix this?

Well, all I can say is that error message is not at all promising - it sounds like a signature is broken, and that's not something that you're likely to fix on your end of the process.  might be a oops moment - give it a couple of days and see if a new revision is posted, and try downloading that.

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