changing layer bug

I'm getting layer changing errors every now and then. I can't seem to replicate in a page I can send you. Don't know what other details I can give you. I just shut down the program and restart.

InteractBuilder Version: 3.3 Build 323
Device: MacBook Pro
Processor: Intel Core i5
Memory: 4 GB
System: 10.6.8

--------------------
An application error occurred while attempting to perform the last action.

Restarting InteractBuilder is recommended.

An application error occurred while attempting to perform the last action.

Restarting InteractBuilder is recommended.

Error: Chunk: error in object expression / Chunk: can't find object / Object: does not have this property / put: error in expression
Handler: ElementMover_Arrange
Hint:
Location: Line 850, char 33
Object: button id 1005 of group id 1010 of card id 1002 of stack "Behaviors" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"

69: Line 850 at char 33: Chunk: error in object expression
77: Line 850 at char 33: Chunk: can't find object
456: Line 850 at char 23: Object: does not have this property
465: Line 850 at char 1: put: error in expression
587: Line 835 at char 1: switch: error in statement
253: Line 834 at char 1: if-then: error in statement
587: Line 791 at char 1: switch: error in statement
241: Line 791 at char 1: Handler: error in statement ----> ElementMover_Arrange
353: Line 0 at char 0: Object Name: ----> button id 1005 of group id 1010 of card id 1002 of stack "Behaviors" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
675: Line 6537 at char 1:  ----> ElementMover_Arrange
253: Line 6536 at char 1: if-then: error in statement
587: Line 5934 at char 1: switch: error in statement
587: Line 5313 at char 1: switch: error in statement
587: Line 5057 at char 1: switch: error in statement
241: Line 5057 at char 1: Handler: error in statement ----> PopOverDoMenu
353: Line 0 at char 0: Object Name: ----> button id 380192 of card id 1002 of stack "IBResources" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
573: Line 4884 at char 1: Handler: can't find handler ----> PopOverDoMenu
253: Line 4793 at char 1: if-then: error in statement
241: Line 4793 at char 1: Handler: error in statement ----> PopOverSubmenu_Select
353: Line 0 at char 0: Object Name: ----> button id 380192 of card id 1002 of stack "IBResources" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
675: Line 1115 at char 1:  ----> PopOverSubmenu_Select
253: Line 1114 at char 1: if-then: error in statement
587: Line 1109 at char 1: switch: error in statement
241: Line 1109 at char 1: Handler: error in statement ----> tmSliderMouseUp
353: Line 0 at char 0: Object Name: ----> button id 380192 of card id 1002 of stack "IBResources" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
675: Line 17 at char 1:  ----> tmSliderMouseUp
241: Line 17 at char 1: Handler: error in statement ----> mouseUp
353: Line 0 at char 0: Object Name: ----> group id 8549653 of group id 8549650 of group id 2716 of group id 2713 of card id 1139 of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"


line 150 of handler "errorDialog" of button "stsErrors_FS" of card id 1002 of stack "libSTSErrors"
line 14098 of handler "DoError" of stack "InteractBuilder" of behavior button "Stack B" of card id 1002 of stack "Behaviors"

I'm having more trouble with this error when I use the manage tool on the bottom left of the screen more than when I use the tool directly from the element. Does that make sense?

InteractBuilder Version: 3.3 Build 325
Device: MacBook Pro
Processor: Intel Core i5
Memory: 4 GB
System: 10.6.8

--------------------
An application error occurred while attempting to perform the last action.

Restarting InteractBuilder is recommended.

An application error occurred while attempting to perform the last action.

Restarting InteractBuilder is recommended.

Error: Chunk: error in object expression / Chunk: can't find object / Object: does not have this property / Operators &: error in left operand / Operators &: error in left operand / put: error in expression
Handler: ElementMover_Arrange
Hint:
Location: Line 788, char 47
Object: button id 1005 of group id 1010 of card id 1002 of stack "Behaviors" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"

69: Line 788 at char 47: Chunk: error in object expression
77: Line 788 at char 47: Chunk: can't find object
456: Line 788 at char 11: Object: does not have this property
118: Line 788 at char 50: Operators &: error in left operand
118: Line 788 at char 61: Operators &: error in left operand
465: Line 788 at char 1: put: error in expression
253: Line 781 at char 1: if-then: error in statement
241: Line 781 at char 1: Handler: error in statement ----> ElementMover_Arrange
353: Line 0 at char 0: Object Name: ----> button id 1005 of group id 1010 of card id 1002 of stack "Behaviors" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
675: Line 6559 at char 1:  ----> ElementMover_Arrange
253: Line 6558 at char 1: if-then: error in statement
587: Line 5956 at char 1: switch: error in statement
587: Line 5331 at char 1: switch: error in statement
587: Line 5077 at char 1: switch: error in statement
253: Line 5072 at char 1: if-then: error in statement
241: Line 5072 at char 1: Handler: error in statement ----> PopOverDoMenu
353: Line 0 at char 0: Object Name: ----> button id 380192 of card id 1002 of stack "IBResources" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
573: Line 4900 at char 1: Handler: can't find handler ----> PopOverDoMenu
253: Line 4809 at char 1: if-then: error in statement
241: Line 4809 at char 1: Handler: error in statement ----> PopOverSubmenu_Select
353: Line 0 at char 0: Object Name: ----> button id 380192 of card id 1002 of stack "IBResources" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
675: Line 1119 at char 1:  ----> PopOverSubmenu_Select
253: Line 1118 at char 1: if-then: error in statement
587: Line 1113 at char 1: switch: error in statement
241: Line 1113 at char 1: Handler: error in statement ----> tmSliderMouseUp
353: Line 0 at char 0: Object Name: ----> button id 380192 of card id 1002 of stack "IBResources" of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
675: Line 17 at char 1:  ----> tmSliderMouseUp
241: Line 17 at char 1: Handler: error in statement ----> mouseUp
353: Line 0 at char 0: Object Name: ----> group id 8619798 of group id 8619795 of group id 2716 of group id 2713 of card id 1139 of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"
573: Line 21 at char 1: Handler: can't find handler ----> mouseUp
241: Line 21 at char 1: Handler: error in statement ----> mouseRelease
353: Line 0 at char 0: Object Name: ----> group id 8619798 of group id 8619795 of group id 2716 of group id 2713 of card id 1139 of stack "/Applications/InteractBuilder.app/Contents/MacOS/Local Components/Data/InteractBuilder.livecode"


line 150 of handler "errorDialog" of button "stsErrors_FS" of card id 1002 of stack "libSTSErrors"
line 14245 of handler "DoError" of stack "InteractBuilder" of behavior button "Stack B" of card id 1002 of stack "Behaviors"