ITunes causing hang on shut down. Help!

iTunes 11 has been causing my Macbook Pro 15.4" running Lion to hang at shutdown.  I would open up iTunes and it would not respond so I would have to force quit it. Then I proceed to shut my mac down (I always quit all running applications and uncheck the 'reopen windows'), where it continues to hang with that grey spinning wheel. I've left it for over 10 minutes and it still hangs, so I'd have to do a hard shut down. This doesn't happen all the time, but it's becoming quite often now. Please help!

If you forced quit iTunes before shut down then that is not what is causing you the problem. Reboot to the Lion Recovery Disk and run Repair Disk from Disk Utility.

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    Model Name:    iMac
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    Processor Speed:    2.7 GHz
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    0xffffff81e08a3b70 : 0xffffff7f8f472a6d
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    0xffffff81e08a3c20 : 0xffffff800f065e2f
    0xffffff81e08a3d70 : 0xffffff800ec98c01
    0xffffff81e08a3e80 : 0xffffff800ec20b3d
    0xffffff81e08a3eb0 : 0xffffff800ec10448
    0xffffff81e08a3f00 : 0xffffff800ec1961b
    0xffffff81e08a3f70 : 0xffffff800eca6536
    0xffffff81e08a3fb0 : 0xffffff800ecce9e3
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             com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8f172000->0xffffff7f8f196fff
             com.apple.driver.AppleACPIPlatform(1.7)[D49DC2E0-97DF-32E6-A8ED-7A12EF1AA51B]@0 xffffff7f90fa4000->0xffffff7f90ffbfff
                dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7f8fe1e000
                dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8f172000
             com.apple.iokit.IOGraphicsFamily(2.3.7)[990D1A42-DF16-3AB9-ABC1-6A88AC142244]@0 xffffff7f8f467000->0xffffff7f8f49efff
                dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8f172000
             com.apple.iokit.IONDRVSupport(2.3.7)[6C8CFC18-75F0-3DEF-86C7-CEB2C1FD6BB1]@0xff ffff7f8f4aa000->0xffffff7f8f4bbfff
                dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[990D1A42-DF16-3AB9-ABC1-6A88AC142244]@0 xffffff7f8f467000
                dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8f172000
             com.apple.NVDAResman(8.1.2)[96AE69DE-8A37-39D0-B2D3-D8446A6AA670]@0xffffff7f8f4 be000->0xffffff7f8f763fff
                dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8f172000
                dependency: com.apple.iokit.IONDRVSupport(2.3.7)[6C8CFC18-75F0-3DEF-86C7-CEB2C1FD6BB1]@0xff ffff7f8f4aa000
                dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[990D1A42-DF16-3AB9-ABC1-6A88AC142244]@0 xffffff7f8f467000
             com.apple.nvidia.gk100hal(8.1.2)[8007AA34-6789-37E9-B069-A414AA26C6B6]@0xffffff 7f8f76f000->0xffffff7f8faa0fff
                dependency: com.apple.NVDAResman(8.1.2)[96AE69DE-8A37-39D0-B2D3-D8446A6AA670]@0xffffff7f8f4 be000
                dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f8f172000
    BSD process name corresponding to current thread: WindowServer
    Mac OS version:
    12E55
    Kernel version:
    Darwin Kernel Version 12.4.0: Wed May  1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64
    Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36
    Kernel slide:     0x000000000ea00000
    Kernel text base: 0xffffff800ec00000
    System model name: iMac13,1 (Mac-00BE6ED71E35EB86)
    System uptime in nanoseconds: 30955729284596
    last loaded kext at 3449783312757: com.apple.driver.AppleUSBCDC          4.1.23 (addr 0xffffff7f910ab000, size 16384)
    last unloaded kext at 3509845520518: com.apple.driver.AppleUSBCDC          4.1.23 (addr 0xffffff7f910ab000, size 12288)
    loaded kexts:
    com.apple.filesystems.afpfs          10.0
    com.apple.nke.asp_tcp          7.1.0
    com.apple.filesystems.smbfs          1.8.4
    com.apple.driver.AudioAUUC          1.60
    com.apple.driver.AppleBluetoothMultitouch          75.19
    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.driver.AGPM          100.12.87
    com.apple.driver.X86PlatformShim          1.0.0
    com.apple.driver.ApplePlatformEnabler          2.0.6d1
    com.apple.driver.AppleMikeyHIDDriver          122
    com.apple.filesystems.autofs          3.0
    com.apple.driver.AppleHDA          2.3.7fc4
    com.apple.GeForce          8.1.2
    com.apple.driver.AppleUpstreamUserClient          3.5.10
    com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.1.4f2
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.iokit.IOBluetoothSerialManager          4.1.4f2
    com.apple.driver.AppleSMCLMU          2.0.3d0
    com.apple.driver.AppleLPC          1.6.0
    com.apple.driver.AppleMikeyDriver          2.3.7fc4
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.ApplePolicyControl          3.4.5
    com.apple.driver.AppleIntelHD4000Graphics          8.1.2
    com.apple.driver.AppleMCCSControl          1.1.11
    com.apple.driver.AppleIntelFramebufferCapri          8.1.2
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          34
    com.apple.driver.XsanFilter          404
    com.apple.driver.AppleSDXC          1.4.2
    com.apple.iokit.IOAHCIBlockStorage          2.3.1
    com.apple.iokit.AppleBCM5701Ethernet          3.6.1b4
    com.apple.driver.AppleUSBHub          5.5.5
    com.apple.driver.AirPort.Brcm4331          615.20.17
    com.apple.driver.AppleAHCIPort          2.5.2
    com.apple.driver.AppleUSBEHCI          5.5.0
    com.apple.driver.AppleUSBXHCI          5.6.0
    com.apple.driver.AppleEFINVRAM          1.7
    com.apple.driver.AppleACPIButtons          1.7
    com.apple.driver.AppleRTC          1.5
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleSMBIOS          1.9
    com.apple.driver.AppleACPIEC          1.7
    com.apple.driver.AppleAPIC          1.6
    com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
    com.apple.nke.applicationfirewall          4.0.39
    com.apple.security.quarantine          2.1
    com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
    com.apple.security.SecureRemotePassword          1.0
    com.apple.driver.IOBluetoothHIDDriver          4.1.4f2
    com.apple.driver.AppleMultitouchDriver          235.29
    com.apple.kext.triggers          1.0
    com.apple.driver.DspFuncLib          2.3.7fc4
    com.apple.iokit.IOAudioFamily          1.8.9fc11
    com.apple.kext.OSvKernDSPLib          1.6
    com.apple.nvidia.gk100hal          8.1.2
    com.apple.NVDAResman          8.1.2
    com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.1.4f2
    com.apple.iokit.IOSurface          86.0.4
    com.apple.iokit.IOSerialFamily          10.0.6
    com.apple.iokit.IOBluetoothFamily          4.1.4f2
    com.apple.driver.AppleHDAController          2.3.7fc4
    com.apple.iokit.IOHDAFamily          2.3.7fc4
    com.apple.driver.AppleThunderboltEDMSink          1.1.8
    com.apple.driver.AppleThunderboltEDMSource          1.1.8
    com.apple.driver.X86PlatformPlugin          1.0.0
    com.apple.driver.AppleSMC          3.1.4d2
    com.apple.driver.IOPlatformPluginFamily          5.3.0d51
    com.apple.driver.AppleSMBusPCI          1.0.11d0
    com.apple.iokit.IOAcceleratorFamily          74.5.1
    com.apple.driver.AppleGraphicsControl          3.4.5
    com.apple.iokit.IONDRVSupport          2.3.7
    com.apple.driver.AppleSMBusController          1.0.11d0
    com.apple.iokit.IOGraphicsFamily          2.3.7
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.5
    com.apple.driver.AppleUSBHIDKeyboard          170.2
    com.apple.driver.AppleHIDKeyboard          170.2
    com.apple.iokit.IOUSBHIDDriver          5.2.5
    com.apple.driver.AppleThunderboltDPOutAdapter          1.8.9
    com.apple.driver.AppleThunderboltDPInAdapter          1.8.9
    com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.9
    com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.6
    com.apple.driver.AppleUSBMergeNub          5.5.5
    com.apple.driver.AppleUSBComposite          5.2.5
    com.apple.iokit.IOEthernetAVBController          1.0.2b1
    com.apple.driver.AppleThunderboltNHI          1.7.8
    com.apple.iokit.IOThunderboltFamily          2.4.0
    com.apple.iokit.IO80211Family          530.4
    com.apple.iokit.IONetworkingFamily          3.0
    com.apple.iokit.IOUSBUserClient          5.5.5
    com.apple.iokit.IOAHCIFamily          2.3.1
    com.apple.iokit.IOUSBFamily          5.6.0
    com.apple.driver.AppleEFIRuntime          1.7
    com.apple.iokit.IOHIDFamily          1.8.1
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          220.3
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.DiskImages          345
    com.apple.iokit.IOStorageFamily          1.8
    com.apple.driver.AppleKeyStore          28.21
    com.apple.driver.AppleACPIPlatform          1.7
    com.apple.iokit.IOPCIFamily          2.7.3
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.corecrypto          1.0
    System Profile:
    Model: iMac13,1, BootROM IM131.010A.B05, 4 processors, Intel Core i5, 2.7 GHz, 16 GB, SMC 2.9f8
    Graphics: NVIDIA GeForce GT 640M, NVIDIA GeForce GT 640M, PCIe, 512 MB
    Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738424255352D474E2D4620
    Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738424255352D474E2D4620
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF4), Broadcom BCM43xx 1.0 (5.106.98.100.17)
    Bluetooth: Version 4.1.4f2 12041, 2 service, 18 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Serial ATA Device: APPLE HDD ST1000LM024, 1 TB
    USB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1a100000 / 2
    USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0x1a120000 / 4
    USB Device: CTH-470, 0x056a  (WACOM Co., Ltd.), 0x00de, 0x1a123000 / 6
    USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0x1a122000 / 5
    USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8511, 0x1a110000 / 3
    USB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1d100000 / 2
    USB Device: hub_device, 0x0424  (SMSC), 0x2412, 0x1d180000 / 3
    USB Device: BRCM20702 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x1d181000 / 4
    USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x828b, 0x1d181300 / 5

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