AutoPLANT SS4: When trying to change a line number associated with a nozzle. All line number are not displayed

I had this one brought to my attention this morning.

When you 'edit componenet' on a nozzle and click the browse button next to the line number, it seem that the box is only showing a certian number of records.We have hundreds of line numbers in our projects and this box is not displaying all of them.

Has anyone else seen this?