re: PK Sharpener
I run most PK tools from an action. I just added an entry before the call to PK that selects the background layer. Works fine. My guess, PixelGenious wil fix this next time around. Sad but true, I can not live without PK tools... saves time by the buckets.
re: Borderless = Centered Print.. not
Deselecting borderless in CS3 does not work on the Epson 4000. What works is printing from CS2, select center printable area in the Epson driver and select center print in the CS2 print dialog.
You'd think centering an image of KNOWN size on a print page of KNOWN size is not beyond Adobe engineers. Let's get with it PEOPLE!
Thus far, I have no need for CS3's claimed magic. And less need for its short comings. (being charitable)