MS Exchange ActiveSync Event ID 1008

Hello,

We have been encountering event ID 1008 on our exchange server with regularity. The error details are below. Any thoughts, input, or suggestions would be greatly appreciated!

An exception occurred and was handled by Exchange ActiveSync. This may have been caused by an outdated or corrupted Exchange ActiveSync device partnership. This can occur if a user tries to modify the same item from multiple computers. If this is the case, Exchange ActiveSync will re-create the partnership with the device. Items will be updated at the next synchronization.

URL=/Microsoft-Server-ActiveSync/default.eas?User=richc&DeviceId=ApplC3RGPFQEDT75&DeviceType=iPod&Cmd=Ping
--- Exception start ---
Exception type: Microsoft.Exchange.Data.Storage.StoragePermanentException
Exception message: Could not get properties.
Exception level: 0
Exception stack trace:    at Microsoft.Exchange.Data.Storage.MapiPropertyBag.GetProperties(IList`1 propertyDefinitions)
   at Microsoft.Exchange.Data.Storage.StoreObjectPropertyBag.InternalLoad(PropertyDefinition[] properties, Boolean forceReload)
   at Microsoft.Exchange.Data.Storage.StoreObjectPropertyBag..ctor(StoreSession session, MapiProp mapiProp, Origin origin, PropertyDefinition[] autoloadProperties, Boolean canSaveOrDisposeMapiProp)
   at Microsoft.Exchange.Data.Storage.StoreObjectPropertyBag..ctor(StoreSession session, MapiProp mapiProp, Origin origin, PropertyDefinition[] autoloadProperties)
   at Microsoft.Exchange.Data.Storage.Item.InternalBindItem(StoreSession session, StoreObjectId itemId, Byte[] changeKey, ItemBindOption itemBindOption, PropertyDefinition[] allPropsToLoad)
   at Microsoft.Exchange.Data.Storage.Item.InternalBind[T](StoreSession session, StoreId id, ItemBindOption itemBindOption, PropertyDefinition[] allPropsToLoad)
   at Microsoft.Exchange.Data.Storage.Item.InternalBind[T](StoreSession session, StoreId id, PropertyDefinition[] allPropsToLoad)
   at Microsoft.Exchange.Data.Storage.MailboxSyncProvider.BindToItemWithItemClass(StoreObjectId id, PropertyDefinition[] properties)
   at Microsoft.Exchange.Data.Storage.MailboxSyncProvider.GetItem(ISyncItemId id, PropertyDefinition[] specifiedPrefetchProperties)
   at Microsoft.Exchange.Data.Storage.FolderSync.GetItem(ServerManifestEntry serverManifestEntry, PropertyDefinition[] prefetchProperties)
   at Microsoft.Exchange.Data.Storage.SyncOperation.GetItem()
   at Microsoft.Exchange.Data.Storage.QueryBasedSyncFilter.UpdateFilterState(SyncOperation syncOperation)
   at Microsoft.Exchange.Data.Storage.FolderSync.ProcessServerOperationAboveWatermark(ServerManifestEntry serverManifestEntry, Dictionary`2 newServerManifest)
   at Microsoft.Exchange.Data.Storage.FolderSync.EnumerateServerOperations(Int32 windowSize)
   at Microsoft.Exchange.AirSync.SyncBase.GetServerChanges(Collection collection, Boolean enumerateAllOperations)
   at Microsoft.Exchange.AirSync.GetItemEstimateCommand.GetChanges(Collection collection, Boolean autoLoadFilterAndSyncKey, Boolean tryNullSync)
   at Microsoft.Exchange.AirSync.PingCommand.FolderChangedSinceLastSync(DPFolderInfo folder, MailboxGetItemEstimateCommand command, Collection collection, Boolean tryNullSync)
   at Microsoft.Exchange.AirSync.PingCommand.InternalConsume(Event evt)
Inner exception follows...
Exception type: Microsoft.Mapi.MapiExceptionCallFailed
Exception message: MapiExceptionCallFailed: Unable to get properties on object. (hr=0x80004005, ec=-2131755000)
Diagnostic context:
    Lid: 18969   EcDoRpcExt2 called [length=489]
    Lid: 27161   EcDoRpcExt2 returned [ec=0x0][length=750][latency=0]
    Lid: 23226   --- ROP Parse Start ---
    Lid: 27962   ROP: ropOpenMessage [3]
    Lid: 27962   ROP: ropGetPropsSpecific [7]
    Lid: 17082   ROP Error: 0x80F00008
    Lid: 26465  
    Lid: 21921   StoreEc: 0x80F00008
    Lid: 27962   ROP: ropExtendedError [250]
    Lid: 1494    ---- Remote Context Beg ----
    Lid: 26426   ROP: ropGetPropsSpecific [7]
    Lid: 21970   StoreEc: 0x8004010F PropTag: 0xE960102
    Lid: 21970   StoreEc: 0x8004010F PropTag: 0x6708000B
    Lid: 21970   StoreEc: 0x8004010F PropTag: 0xE960102
    Lid: 21970   StoreEc: 0x8004010F PropTag: 0x67760102
    Lid: 25394  
    Lid: 19506  
    Lid: 27698  
    Lid: 11285   StoreEc: 0x80F00008
    Lid: 5257    StoreEc: 0x80F00008
    Lid: 1750    ---- Remote Context End ----
    Lid: 26849  
    Lid: 21817   ROP Failure: 0x80F00008
    Lid: 20385  
    Lid: 28577   StoreEc: 0x80F00008
    Lid: 32001  
    Lid: 29953   StoreEc: 0x80F00008
Exception level: 1
Exception stack trace:    at Microsoft.Mapi.MapiExceptionHelper.ThrowIfError(String message, Int32 hresult, Object objLastErrorInfo)
   at Microsoft.Mapi.MapiProp.GetProps(PropTag[] propTagsRequested)
   at Microsoft.Exchange.Data.Storage.MapiPropertyBag.GetProperties(IList`1 propertyDefinitions)
--- Exception end ---.