@ Emmalou: I haven't found a solution yet.
looking into other printers atm...

Andy,
How do you print out of Photoshop?
I tried printing directly to the SG800 out of photoshop with the icc profiles i could find in the Virtuoso Print Manager install file.
But the colors are off.. images printed through VPM are much more saturated.

<t>It's more like a dithering problem like webtrekker said.<br/>
If you print through VPM it is error diffusion dithering, which gives very bad results in clear skies and white / grey backgrounds (banding appears).<br/>
I've printed the same document through VPM and directly from Acrobat (where I ...

Yes, I'm using official Sawgrass inks.
I'll get in touch with Sawgrass asap, thanks.

<t>We're offering normal print matter on paper accompanied with dye sub products like mugs, bottles, wood, alu...<br/>
In testing phase we check the colours of the dye sub products so it matches the normal products printed on paper, so it can be sold as a set.<br/>
<br/>
Now after a while we see ...

Could you share your solution if you find one? I'm having the same problem with the SG800.
I'm using the VPM with hotfolders, there's no option to change the dithering...