hide blank columns in a matrix

Hello,

I have defined a matrix in SSRS 2008 R2.  The columns are obviously dynamic and based on my dataset.  I have setup the report to be paged by the group row which in this case is a particular account.  Now, unfortunately, every row is not going to have information for every column.  So, as I am paging through my different accounts, there are many columns that are blank.

How may I hide the blank columns?  Just to be clear, in report designer, I can only see one column.  But upon run time they expand as the data is fed in.

Thanks!