Some time ago I asked for help for this printer inasmuch that moving to XP prevented me from having a dpi of 1440. I was informed that an alternative Epson driver would do the trick. In moving to a new computer and XP I regret that I have lost the information. I don't know how far back your records go but have been unable to retrieve. Appreciate your help.
I think that's a Mac driver, it's a Mac file at least. The 600 will work with XP's builtin drivers, but, as you have found, not with all functionality. You might be able to restore the function you require with an XP driver from a newer printer in the range, but it's not guaranteed. click here
Appreciate your comments. To woodchip: I have had such wonderful service from this Epson and if it works, why change it? My only reason for change at this stage would be to go for an A2 printer because of my interest in graphics.