If you use Ubuntu Linux (and probably this is true of many other versions of Linux), it works without any installation. And if you use non-Epson cartridges it doesn't give you the irritating 'nag' dialog every time you print, unlike the Windows installation.
OK, so you're not going to switch to Linux just to get your printer working, but if you also have other problems it's worth thinking about giving it a try. After all, it's free and legal.
John
February 2009
What Joe means is that this question has been asked UMPTEEEN times and it does not take a rocket scientist to work out that the place to start is: www.epson.com
t
September 2008
OH FOR GOD SAKE WILL ALL YOU PLONKERS READ BEFORE ASKING THE SAME QUESTIONS. YOU ARE GETTING DEPRESSINGLY BORING.