XL2000: Undoing Change to Chart after Freezing Pane Causes Invalid Page Fault

When you attempt to undo an action that you performed on a chart object, such as undoing a move (click Undo Move on the Edit menu), you may receive the following error message: When you click Details, you receive the following additional information: When you click Close, you may receive another illegal operation error message. And when you click Details, you receive the following additional information: You may receive similar errors if you attempt to undo other changes you have made to a chart object. This behavior is not known to occur with other object types.

This error message occurs when you perform the following steps in the order shown:

1.	Insert a chart object.
2.	Move or change an item on the chart object.
3.	Switch to another sheet in the workbook.
4.	On the Window menu, click Freeze Panes.
5.	Attempt to undo the change you made in step 2.

To work around this problem, vary your steps from those shown in the "Cause" section of this article. For example, if you unfreeze the window pane before you undo the change, you will not receive the error message.

Also, this problem will not occur if you switch back to the sheet on which you are undoing the action. For example, if you are undoing an action on Sheet2, switch to Sheet2 before you click Undo.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.