Should work. 2 things I would check
1. Watch it thru the script debugger and make sure it is setting the proper field with the proper data.
2. Double click and open your perform find script step, and delete any previous find criteria.
Are you sure your global date fields are actually set to global storage?
I have missed that step in the past.
Maybe you should check that.
Other than that your script does look good.
Bingo, that was it! I'll have to keep that in mind for the future. Thank you both for your quick replies!
Another point you might like to keep in mind is to make sure the global date fields are set up to ensure proper date format. I always (1) set the field to "select entire contents on entry" to make sure you don't end up with multiple dates (although a date field should alert you to this anyway), and (2) set the control style to drop down calendar, to standardise the data format.