Hi, 
  
I have a already in place chart that use as data source a Sharepoint List. 
  
However I make a change to that list - I add an additional column with the result that the whole page was not accessible an error message occurs (?!). 
I start immediatelly troubleshooting...after I delete the new created column the error disappears and the page was again accessible. 
  
Why it is not possible to add new columns to a Sharepoint list which is already in use by a Collabion chart? 
In my opinion it's a limitation for maintenance or update of charts and reports! 
  
-- -- 
Why adding columns to a list?  
Because the current list could be used for more than one chart if I add one more column. 
  
Regards, KOR