Five hours later and thank God I've found you folks; MS suck for this. Event viewer ID 1111 Source TermServiceDevices Driver Adobe PDF converter Printer Adobe PDF is unknown Install driver before you log in again, O.K. This is a message on a Windows Server 2003 SP3. There is no "Physical Printer" attached. No one prints to the two Networked printers from this server that I know of. Can anyone help?