VSS Failure

I have SBS 2008 and remote Backup Exec client(2010 r2.) I have errors every night -

Backup
- AOFO: Initialization failure on: "\\HS-EN-DC-02.HSAA.local\Microsoft Information Store\First Storage Group". Advanced Open File Option used: Microsoft Volume Shadow Copy Service (VSS).

V-79-10000-11217 - VSS Snapshot error. The Microsoft Volume Shadow Copy Service (VSS) snapshot failed. Make sure that all provider services and tasks are running. Check the Windows Event Viewer for details.

- AOFO: Initialization failure on: "\\HS-EN-DC-02.HSAA.local\Microsoft Information Store\Second Storage Group". Advanced Open File Option used: Microsoft Volume Shadow Copy Service (VSS).

V-79-10000-11217 - VSS Snapshot error. The Microsoft Volume Shadow Copy Service (VSS) snapshot failed. Make sure that all provider services and tasks are running. Check the Windows Event Viewer for details.

and exceptions -

Backup
- AOFO: Initialization failure on: "\\HS-EN-DC-02.HSAA.local\D:". Advanced Open File Option used: Microsoft Volume Shadow Copy Service (VSS).

V-79-10000-11217 - VSS Snapshot error. The Microsoft Volume Shadow Copy Service (VSS) snapshot failed. Make sure that all provider services and tasks are running. Check the Windows Event Viewer for details.

- AOFO: Initialization failure on: "\\HS-EN-DC-02.HSAA.local\E:". Advanced Open File Option used: Microsoft Volume Shadow Copy Service (VSS).

V-79-10000-11217 - VSS Snapshot error. The Microsoft Volume Shadow Copy Service (VSS) snapshot failed. Make sure that all provider services and tasks are running. Check the Windows Event Viewer for details.

- AOFO: Initialization failure on: "\\HS-EN-DC-02.HSAA.local\F:". Advanced Open File Option used: Microsoft Volume Shadow Copy Service (VSS).

V-79-10000-11217 - VSS Snapshot error. The Microsoft Volume Shadow Copy Service (VSS) snapshot failed. Make sure that all provider services and tasks are running. Check the Windows Event Viewer for details.

The Microsoft Exchange writer is in failed state -

Writer name: 'Microsoft Exchange Writer'
   Writer Id: {76fe1ac4-15f7-4bcd-987e-8e1acb462fb7}
   Writer Instance Id: {aa4b19fd-1241-43fb-aeee-3b08034a65a6}
   State: [7] Failed
   Last error: No error

I called Symantec, they say it is a Microsoft problem.

Any fixes out there. All I find is info for SBS 2003.

Thanks in advance!