Drillthrough

I have a generic dashboard with a table in it that summarises the monthly variances of the cost categories.

I have then created sperate reports for each of these cost categories, which go into more detail.

The users can therefore right click on the table and select the page they want to see from the drill through list. However, I have noticed that the drill through only works correctly when I right click on the relevant line item I want to see.

i.e. if I right click on staff costs, but select Technology from the drill through list, it takes me to the staff costs report but applies tech data.

Any way I can stop this from happening?

Thanks,
Luca