Remove document history on mobile

Hi experts,

When the user logs on using IPAD or IPHONE, a history of all the reports that he has ran appears on the main screen, and it can get confusing.

I set the parameters on the CMC so that he would not be able to store off-line data, here are the settings

But the history still shows up on the IPAD's that have ran the reports before this configuration was changed.

I need o remove that history from all IPAD's, any ideas?

I'm using version 4.1 Support Pack 2

Best