我在使用《PCS7在不使用Faceplate的情况下如何实现直接操作的功能》中提到的功能时，有时一用就有问题，有时会用的好好的，一段时间后就会出现操作不了，出现过如下问题：
SSMRTOpenSpecField failed: Picture name could not retrieved by Graphics RT.
'PCS7_OpenInputBoxBin_V6_log': unresolved external function
====================================OnErrorExecute====================================
SystemTime: (ThreadId 5764) 2009-04-03 14:51:36.171
dwErrorCode1: (ThreadId 5764) 1007001
dwErrorCode2: (ThreadId 5764) 4099
szErrorText: (ThreadId 5764) Exception in Action
szErrorTextException: (ThreadId 5764) unresolved external function or variable
szApplicationName: (ThreadId 5764) PDLRuntimeSystem
bCycle: (ThreadId 5764) acycle
szFunctionName: (ThreadId 5764) @1d8
lpszPictureName: (ThreadId 5764) @SCREEN.@WIN12:@1001.@DESK:一道过滤A线
lpszObjectName: (ThreadId 5764) MY_toggle
lpszPropertyName: (ThreadId 5764) Display_Variable
dwParamSize: (ThreadId 5764) 20
====================================OnErrorExecute====================================
'PCS7_OpenInputBoxBin_V6_log': unresolved external function
====================================OnErrorExecute====================================
SystemTime: (ThreadId 5764) 2009-04-03 14:51:36.218
dwErrorCode1: (ThreadId 5764) 1007001
dwErrorCode2: (ThreadId 5764) 4099
szErrorText: (ThreadId 5764) Exception in Action
szErrorTextException: (ThreadId 5764) unresolved external function or variable
szApplicationName: (ThreadId 5764) PDLRuntimeSystem
bCycle: (ThreadId 5764) acycle
szFunctionName: (ThreadId 5764) @1dd
lpszPictureName: (ThreadId 5764) @SCREEN.@WIN12:@1001.@DESK:一道过滤A线
lpszObjectName: (ThreadId 5764) MY_toggle1
lpszPropertyName: (ThreadId 5764) Display_Variable
dwParamSize: (ThreadId 5764) 20
====================================OnErrorExecute====================================
'PCS7_OpenInputBoxBin_V6_log': unresolved external function
====================================OnErrorExecute====================================
SystemTime: (ThreadId 5764) 2009-04-03 14:52:09.125
dwErrorCode1: (ThreadId 5764) 1007001
dwErrorCode2: (ThreadId 5764) 4099
szErrorText: (ThreadId 5764) Exception in Action
szErrorTextException: (ThreadId 5764) unresolved external function or variable
szApplicationName: (ThreadId 5764) PDLRuntimeSystem
bCycle: (ThreadId 5764) acycle
szFunctionName: (ThreadId 5764) @1e0
lpszPictureName: (ThreadId 5764) @SCREEN.@WIN12:@1001.@DESK:一道过滤A线
lpszObjectName: (ThreadId 5764) MY_toggle
lpszPropertyName: (ThreadId 5764) (NULL)
dwParamSize: (ThreadId 5764) 12
====================================OnErrorExecute====================================
'PCS7_OpenInputBoxBin_V6_log': unresolved external function
====================================OnErrorExecute====================================
SystemTime: (ThreadId 5764) 2009-04-03 14:55:46.843
dwErrorCode1: (ThreadId 5764) 1007001
dwErrorCode2: (ThreadId 5764) 4099
szErrorText: (ThreadId 5764) Exception in Action
szErrorTextException: (ThreadId 5764) unresolved external function or variable
szApplicationName: (ThreadId 5764) PDLRuntimeSystem
bCycle: (ThreadId 5764) acycle
szFunctionName: (ThreadId 5764) @1e0
lpszPictureName: (ThreadId 5764) @SCREEN.@WIN12:@1001.@DESK:一道过滤A线
lpszObjectName: (ThreadId 5764) MY_toggle
lpszPropertyName: (ThreadId 5764) (NULL)
dwParamSize: (ThreadId 5764) 12
====================================OnErrorExecute====================================
'PCS7_OpenInputBoxBin_V6_log': unresolved external function
====================================OnErrorExecute====================================
SystemTime: (ThreadId 5764) 2009-04-03 14:55:56.312
dwErrorCode1: (ThreadId 5764) 1007001
dwErrorCode2: (ThreadId 5764) 4099
szErrorText: (ThreadId 5764) Exception in Action
szErrorTextException: (ThreadId 5764) unresolved external function or variable
szApplicationName: (ThreadId 5764) PDLRuntimeSystem
bCycle: (ThreadId 5764) acycle
szFunctionName: (ThreadId 5764) @1e1
lpszPictureName: (ThreadId 5764) @SCREEN.@WIN12:@1001.@DESK:一道过滤A线
lpszObjectName: (ThreadId 5764) MY_toggle1
lpszPropertyName: (ThreadId 5764) (NULL)
dwParamSize: (ThreadId 5764) 12
====================================OnErrorExecute====================================

是报Display_Variable的脚本的错误，当时我删掉其中的脚本，又能正常使用；在PCS7V6.1英文版、7.0中文版中都出现过，不知是啥原因，请各位专家帮解决一下。