Question : reset Exchange 2007, HELP

I have been working for two days to get rid of the Outlook login with Exchange 2007.  I have tried so many different posts that I just want to reset.

1- I have a multi name cert and it looks good.
2- External access is a breeze.
3- Autodiscover picks up the username but then asks for a login.
3- Outlook continues to prompt and I think now it is a permissions issue.  

How can I totally blow away Exchange 2007 with SBS 2008 and get back to the defaults.  

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Answer : reset Exchange 2007, HELP

I was able to find a solution buried deep in a post after 12 hours of searching.

The last few days have been a nightmare of complaints. This month's update definately broke a perfectly working SBS 2008/Exchange 2007/Outlook 2007 authentication system, both over RPC and regular. Just keeps asking for password! Tried a million things just like the others, no joy. Went into IIS Manager, opened SBS Web Applications, Select Autodiscover, double click SSL settings (you have to scroll down to see it), check Accept instead of ignore or require, and Apply. I repeated for owa, remote, Rpc, RpcWithCert (possibly don't have to do all these). Restarted Web Publishing and Joy Joy Joy!!!