QTR-Quadtone RIP

I saw there was an upgrade for Windows (2.7.5) and decided to install it. Now, the program sees the saved curve name under "Curve 1," but when I go to open Curve creator, I get "Address violation in address x x x x in module QTRgui.exe. I click OK and the curve creator box opens. Then I try to load the desired curve and get the message, "Error in ink description at Line: 2." Running Win 7 and used the default location during the upgrade. It's been a few months since I last used the program and suspect it may be something simple?

Update: The latest version, 2.7.5, does not work on either my desktop or laptop. I can set K as gray ink, then on Cyan when I select "copy curve from," the Density drop down box remains grayed out.

I uninstalled then re-installed 2.7.2 and it works fine.

Am I the only one fighting this?

Thanks,

Jake

If you are setting Cyan to copy the K-curve then you wouldn't need to/can't set a value in the Cyan density option. You can set an ink limit for Cyan, and it will map the the shape of the K-curve to that max Cyan ink limit. The cyan density option is used to set the cross-over point with the K-curve to build the Cyan curve—trying to set a cross over point is a conflict with the copy curve option. If you change copy k curve to gray ink the density box will no longer be grayed out.

Richard, thanks for replying.

I have an Epson 7900, OEM inks, and use QTR only for creating digital negatives for alt-processes.

What I was describing was after choosing "Copy curve from" on the Cyan, The option to select "K" was not available but was grayed out. Likewise for ALL other colors. This was after discovering that QTR ver. 2.7.5 would not even load existing curves that worked just fine with the older version. I have since removed the new version and re-installed 2.7.2 which works just fine.

What I am doing is creating a custom "linearization" curve for the black, then having all colors (except LK which I use as "gray" for the black boost) follow this single curve. No cross-over nonsense. That was a nightmare to try and work out as a negative then print in platinum. Others have been using a single curve for digi-negs with success, and it seems to work for me as well.

Jake