Postdated credit voucher deposit window

When i login to SAP B1, the postdated credit voucher deposit window appears. I checked the settings under Administration > System Initialization > General Settings > Services and BP Tabs

Submit credit vouchers : automatically

Open postdated credit vouchers window : was set to 'by date'. I changed it to 'No' but the postdated credit voucher deposit window still appears when i log in!

How can i prevent this window from popping up?

thanks