2007 Exchange server/windows server 2008 lockup

I have an Exchange 2007 running on a Windows 2008 server that is my DC. In the last 2 weeks the system has stopped functioning twice and each time required a Hard powerdown. the last error in the log is a Event Code1006 error code85 "The processing of Group Policy failed. Windows could not authenticate to the Active Directory service on a domain controller. (LDAP Bind function call failed). Look in the details tab for error code and description." Is this the cause or just a reaction the system locking up? Any clues as to the reason why this is happening?
CSmith_13TrusteeAsked:
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Manpreet SIngh KhatraConnect With a Mentor Solutions Architect, Project LeadCommented:
I would suggest you to check System logs as well and see whats the Free space on the drive at that time ?
Also what all 3rd party softwares do you have as i would like to try and disable and then monitor for sometime as they too could be cause of the issue

- Rancy
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CSmith_13TrusteeAuthor Commented:
Free space was one of the first things I checked (I'm at less than 10% usage). I will look at other services
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CSmith_13TrusteeAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for CSmith_13Trustee's comment #a39244087

for the following reason:

Gave me some things to look at
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Dont mind but if the answer helped i should be awared points .... but wont Object and leave it to you

- Rancy
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