Digital Light & Color

Sounds like you downloaded the standard and not the pro version.

Not within the tranformation - as with any transformation you can create a mask manually and use Composite to blend the transformed image back into the original image with the mask to restrict the effect to certain areas.

There is an extensive discussion of bilateral sharpening in the updated white paper Sharpen.pdf.

In IE8, I think all the triangle disappear if you switch to compatibility mode.

The black density varies with the printer and ink. Coated papers get a much denser black.

I think I found the setting - I set the time limit to edit posts to 2 hours. It was set to zero which apparently disables editing.

It depends on the target profile.

With the possible exception of some V4 Monitor profiles I would assume that the monitor rendering intent is not supported by any monitor profiles.

Not that I know of - I would make several test prints and see which ones look best.

I don't have a good suggestion here. Given that the eye does a good job of correcting for color temperature differences I would focus on getting the gamma right. After all you can't change the color of the paper white.

That sounds right - the rendering intent is an optional hint to the color engine and not all profiles support all rendering intents. Mostly I have seen rendering intent applied to printer profiles where there are multiple sets of tables - one for each supported rendering intent.