Yes, PS5 did take away the color management that previous version had in the print dialog.
Is your design 1 color or multiple colors? If multiple, you will need to color separate into channels not layers then print each channel individually by selecting one at the time.
to get the spot color to not show half tones, i'm going to pass along what Steve at quikseps told me.
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Select the object within the channel its on using the magic wand tool and fill it with 100% black color. It will then print solid.
You can also select the object and use a curve to solidify it. Grab the upper right handle within the Curves and drag it to the left (right along the top). Keep the "Info Palette" open and hover any tool over the text while adjusting it. Keep moving the handle to the left until 100% is reached within the Info Palette.
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