OK, I think I have done my homework so far.
Mac Pro Quad Early 2009, Mac OSX 10.7.4, Current Epson Printer Driver (v9), Epson R2880, MK inks, and Photoshop CS6, as well as CS4
I can find and use my Hahnemuehle MK profiles using CS4.
Specifically, Museum Etching and Photo Rag 308g.
I can't see them with CS6.
I open the profiles for inspection using the Color Sync Utility, they are both RGB, Mac version. That's what the metadata says.
They're also of Class: Output, and the PCS:Lab
The Epson profiles are all also Output,RGB, Lab
So if they are RGB, and the printer expects RGB profiles - why can't they be found by the CS6/Epson Printer Driver ?????
I know Chris mentioned the printer expecting compatible profiles - how are the Hahnemuehle NOT compatible???
If any of the pros and Adobe guys can help me, please!
mike
P.S.: Hahnemuehle was consulted, sent me a 2008 pdf, I said the instructions were not good for CS6, they went silent... so far