[Koha] reports function

When commanding a report to run, Koha asks me to "Enter parameters for report Cataloged Books:", with a bar below it that says "itype:" and has an empty scroll bar with no choices to pick from. When I click run, nothing happens. Anyone know what this means or how to fix it? Also, is there a way to export reports in any format other than a .csv or .tab? Neither of these are viewable on my machine. Thanks! Caitlin McGurk -- Caitlin McGurk Librarian The Schulz Library The Center for Cartoon Studies McGurk@cartoonstudies.org