Originally posted by DBlank
When you added a new table to your report it created duplicate rows. First check your joins. If the tables are not joined you will get a huge Cartesian result.
Your other values exploded because once you used a field from the new table it enforced the join which is when the Cartesian result occurred.
In the running total did you set it to a distinct count or a count. Regardless of the duplicated number of rows your result should be the same with the distinct count.
I had a feeling it had something to do with the table setup. I have little experience with setting up the links in the table, but the only column of information that matches between the two is called the "Universal Join Column", which I assume is automatically added in by Crystal. The number of rows in the two tables is also the same.
I used a distinct count and the problem still occurred.