Excel in Web layout: calculation of total after a cell change

Hi,

I'm using BW 3.5 with SEM BPS 4.0 and Excel in Web layouts. I can see the total rows/columns are not updating automatically after a cell change like it does in "normal html-web". User has to press refresh or save to update the totals. Any workarounds?

Thanks in advance!

Rgrds, Aki