Duplicate Printer Shares

We’ve been getting Duplicate printer shares recently which causes havok in our citrix database program and requires direct intervention at each occurance… at least 20 times/day. Here’s an example: normally we have printers on our clients named as Printer1 on SERVER. Currently we have that share along with a Printer1 on SERVER.DOMAIN.com. It happens randomly and on all users. We are running Citrix 4.0 and Windows 2000 Server SP4. The printer shares are on a print server running Win2000. Any idea what could be causing this.