macbook pro無法進入睡眠模式？

原本使用lion時都正常，

但一升級mountain lion後就一直無法正常睡眠。

軟體升級使用乾淨安裝，

2011 macbook pro 13"

有更改為雙硬碟版本(SSD+HD)，

有更改睡眠模式為"0"，

有更改光碟機成能外接使用。

以上更動使用lion時就變動，



以下是睡眠資訊：



Assertion status system-wide:
PreventUserIdleDisplaySleep 0
PreventSystemSleep 0
PreventUserIdleSystemSleep 0
ExternalMedia 0
UserIsActive 0
ApplePushServiceTask 0
BackgroundTask 0

Listed by owning process:
pid 56(mds): [0x0000000c0000012e] 00:14:31 BackgroundTask named: "com.apple.metadata.mds"

Kernel Assertions: 0x0128
* Kernel Assertion ID = 500
Created At =
Modified At =
Owner ID = 0xffffff8041ef0000
Level = 0
Assertions Set = None (4)

* Kernel Assertion ID = 501
Created At =
Modified At =
Owner ID = 0xffffff8041f05000
Level = 0
Assertions Set = None (4)

* Kernel Assertion ID = 502
Created At =
Modified At =
Owner ID = 0xffffff8041ebce00
Level = 0
Assertions Set = None (32)

* Kernel Assertion ID = 503
Created At =
Modified At =
Owner ID = 0xffffff80420cdc00
Level = 255
Assertions Set = None (128)


可否有大大可以幫我抓出是哪裡設定有誤？