How to rebuild the Exchange 2007 Index

From the Exchange command shell: ResetSearchIndex.ps1 [-force] -all

Event 111 and 1085

If you are using folder redirection via group policy and you see these events login as the user that is having issues redirecting their folder. Run regedit (you may have to temporarily add them as an admin) and go to the security of HKCU. Make sure that the user has full control permissions to HKCU.

I have seen it where the user has no permissions for HKCU and instead another user has the perms.