Hi. I'm printing out the results of my Dow-based system each day since about 2 months (with wealth-lab.com, not the WL-developer). Because of the partially random share-selection (if you have more signals than positions to take) I get slightly different results each day. That's ok for me. BUT: Since last week things have changed dramatically ! My profits for the 1 year - run, which were more or less the same since the beginning of April, decreased by a factor of two ! Did WL change the data provider ? And have data-record been changed even in the past ? Any other suggestions ? Thanks, pri