Communication error i have intel mac + tiger os i have epson stylus dx4050 dialogue box says it is sending data but it never prints.  it will however print off my windows vista

Marky12, if the printer works fine on the vista system then you can eliminate a hardware fault. sounds like a driver or install issue. remove the printer completely from the mac (uninstall software, drivers and unplug) then go to epson.com, choose your countrey and head to the support and downloads section. Get the latest drivers for mac/tiger and reinstall the printer (make sure you have restarted the mac in between uninstall and reinstall) and most important !!! dont plug in the usb cord until the driver install tells you to
Good luck