quartus 12.1 sp1 版本，建立新工程的时候，加载器件报错的问题。

昨天刚装好的时候，都没有报错，但今天一来就这样了，连昨天建好了的工程都打不开了。如果不加载器件，就可以使用。错误如下：
Internal Error: Sub-system: DMGR, File: /quartus/ddb/dmgr/dmgr_utility_body.cpp, Line: 3502
Cannot load library ddb_dpow.dll: 2ù×÷3é1|íê3é¡￡
Stack Trace:
     0x202e: DMGR_UTILITY_BODY::initialize_dpow_info_manager + 0x2e (DDB_DMGR)
     0xe90a: DMGR_UTILITY_BODY::create_device + 0xd1a (DDB_DMGR)
    0x100dc: DMGR_UTILITY_BODY::create_device + 0xcc (DDB_DMGR)
    0x10e4c: DMGR_UTILITY_BODY::create_device + 0x1dc (DDB_DMGR)
    0x111b5: DMGR_UTILITY_BODY::create_device + 0x55 (DDB_DMGR)
     0x1b6c: DMGR_UTILITY::create_device + 0x6c (DDB_DMGR)
     0xc748: bmwq_get_voltage + 0x1b8 (sys_bmwq)
    0x10748: BMWQ_NPW_SUMMARY::initializePage + 0xba8 (sys_bmwq)
   0x3de74a: QWizard::initializePage + 0x3a (QtGui4)
    0x17c50: RtlCompareUnicodeString + 0x460 (ntdll)
    0x17d07: LdrGetProcedureAddress + 0x17 (ntdll)
     0xae7d: GetProcAddress + 0x3d (kernel32)
    0xdf883: QMetaObject::cast + 0x13 (QtCore4)
     0x4d41: msg_main_thread + 0x11 (CCL_MSG)
     0x9969: QUI_APP::metaObject + 0x5 (SYS_QGQ)
     0x10df: QGQ_APP::~QGQ_APP + 0x3f (SYS_QGQ)
     0x9c03: QUI_WORKSPACE_MGR::qt_metacall + 0x5 (SYS_QGQ)
     0x9e2b: QLabel::focusNextPrevChild + 0x5 (SYS_QGQ)
     0x9e31: QObject::eventFilter + 0x5 (SYS_QGQ)
     0x9e37: QObject::timerEvent + 0x5 (SYS_QGQ)
     0x9e3d: QObject::childEvent + 0x5 (SYS_QGQ)
     0x9e43: QObject::customEvent + 0x5 (SYS_QGQ)
     0x9e49: QObject::connectNotify + 0x5 (SYS_QGQ)
     0x9c09: QApplication::event + 0x5 (SYS_QGQ)
     0x9e4f: QObject::disconnectNotify + 0x5 (SYS_QGQ)
     0x9c0f: QApplication::notify + 0x5 (SYS_QGQ)
     0x9c15: QApplication::compressEvent + 0x5 (SYS_QGQ)
     0x9c1b: QApplication::commitData + 0x5 (SYS_QGQ)
     0x7fff: QGQ_MAIN_WINDOW::`vector deleting destructor' + 0xf (SYS_QGQ)
     0x9975: QUI_APP::qt_metacall + 0x5 (SYS_QGQ)
     0x997b: QUI_APP::exit_instance + 0x5 (SYS_QGQ)
     0x9981: QUI_APP::get_main_window + 0x5 (SYS_QGQ)
     0x9987: QUI_APP::get_prj_ui_mgr + 0x5 (SYS_QGQ)
     0x998d: QUI_APP::process_cmdline_arguments_pre_main_wnd_create + 0x5 (SYS_QGQ)
     0x9993: QUI_APP::process_cmdline_arguments_post_main_wnd_show + 0x5 (SYS_QGQ)
     0x9999: QUI_APP::process_cmdline_arguments_post_main_wnd_create + 0x5 (SYS_QGQ)

   0x6c6965: QGraphicsOpacityEffect::staticMetaObject + 0x1190c9 (QtGui4)