Errors attempting to start the User Profile Synchronization Service

Hello,

I'm attempting to setup the User Profile service and am stuck at the point of getting the "User Profile Synchronization Service" to start.  In the ULS logs, there is a series of entries that seem to suggest that it's close to being started, but then gets rolled back.

Below is the meat of the ULS logs for this sequence of events:

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	erx2	Medium	The service instance User Profile Synchronization Service is successfully provisioned.

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	0000	Medium	SetupSynchronizationService :: Sync DB failover Check :: databaseServerMiis = SP2010DEV-SQL

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	0000	Medium	SetupSynchronizationService :: Sync DB failover Check :: originalSyncConnectionString = Data Source=SP2010DEV-SQL;Initial Catalog="Sync DB";Integrated Security=True;Enlist=False;Connect Timeout=15

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	0000	Medium	SetupSynchronizationService :: Sync DB failover Check::  originalSyncConnectionDataSource = SP2010DEV-SQL

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	0000	Medium	SetupSynchronizationService :: Sync DB failover Check :: new datasource string on connection object = SP2010DEV-SQL

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	0000	High	Exception trying to write the management agent stack size for the Moss MA. System.UnauthorizedAccessException: Access to the registry key 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\FIMSynchronizationService\Parameters\PerMAInstance\MOSS-82f7f71e-22fc-4065-8359-e3e8d961633f' is denied.

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	erx9	High	ProfileSynchronizationService: Provisioning TImer Job encountered an exception: System.UnauthorizedAccessException: Access to the registry key 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\FIMSynchronizationService\Parameters\PerMAInstance\MOSS-82f7f71e-22fc-4065-8359-e3e8d961633f' is denied.

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	erx5	Medium	Unprovisioning service instance User Profile Synchronization Service.

OWSTIMER.EXE (0x0354)	0x08E8	SharePoint Portal Server	User Profiles	erx6	Medium	The service instance User Profile Synchronization Service is successfully unprovisioned.

Any idea what this means and how to fix it?

Thanks!