Hi Linsey,
I notice that if you try this when opening an exisitng workbook with a crosstab already inserted, and you perform the copy operation BEFORE refreshing the original crosstab, the copy is done but the cell is blank. If you right-click in the top-left new destination cell and select refresh, you will be promted to connect to the system and the crosstab will then appear.
You can check if the copy has happened by observing the components in the Components tab...
Any possibility this it the case for you?
Regards,
Stephen