I have created a report within ssrs 2005. I have 3 sets of parameters where we allow the user to select a number of items within the parameter before the report is run. I wanted to set the default of all the parameters to SELECT ALL so they will just need to click on VIEW REPORT. I have set the default of two of the parameters successfully... by going within REPORT PARAMETERS and selecting FROM QUERY radio button within Default Values... I selected the correct Dataset and the Column name... But when I deploy the report... one of the parameters default values isn't selected... what am i doing wrong

the problem was resolved by removing null values with the dataset for the parameter