I am connecting from a home WinXP Pro machine to office WinXP Pro machine. Home printer is Dell photo 944. Driver is installled at office, port is USB001, same port and driver at home. From home, printer appears in Printers window, port is TSC001. Won't print, can't delete job, etc. Same scenario with HP Laserjet 6P/6MP on LPT1 works just fine.