Just recevied the printer. Doing test prints with some paper I had laying around OCE Color\plus Inkjet Media Glossy. Profiled great color on spot on. Problem the ink is not drying with or without the gloss enhancer. Altough not as bad with GE on. Another issue, I turned up the dry time & got stars on the bottom part of the print when using GE, not sure with GE Off will have to test.
It sounds like the paper is not compatible with the HP Vivera pigment inks if its not drying.
I'm not sure what the "stars" might be unless you're describing head strikes.